as a very fair warning, even with a large case your going to be strapped for space on that board, Gigabyte makes a good product , they have a bad habit of mashing things together.
Especially having the CMOS chip usually butt humping the bottom of one of your cards. investing in a few heat shimmies would be well worth the money,

Also, check the location of the Sata/raid ports, if they are obstructed by those huge cards the board isn't going to pleasant to work with.

900 doesnt have much room inside. im considering replacing mine with a Cooler Master HAF. it's a good case for the price just not romy enough for me. it will fit any sized video card but the large 10.5" ones may require moving the HDD.
Also, there's the nine hundred-two out now for a little more $$ but is definitely a better case!

the PSU...WHAT??? Seasonic makes good supplies and that 300+ watt one from them is probably uner-rated...but seriously come on now. PSU is the absolute last thing you want to skimp on. according to the Power Supply Calculator, with 2-3 years heavy usage and a moderate CPU overclock you'll need: Recommended PSU Wattage: 579w
without the overclock you'd still need 484 watts
get at least this: http://www.newegg.com/Product/Product.a ... 6817139005
if you have any plans at all of every going SLI or Crossfire, you'll need a better PSU right out of the gate, like: http://www.newegg.com/Product/Product.a ... 6817139006
the 1st one is great for the system as listed.
i you truly wanna skimp (NOT ON PSU!!!!!!) get the Antec Earthwatts...it's great for the price but certainly not as good as the Corsair TX series or the PC Power and Cooling 610w, which is my second vote for base PSU.


GTX275 is a strong card, but the HD4890 is generally a little better. you might want to look at http://www.newegg.com/Product/Product.a ... 6814150360
i've no experience with ATI XFX cards-they just started making them a few months ago-but theyre 1 of only 2 ATI mfgs w/ lifetime warranty. also, Asus makes exceptional ATI cards...they often use better caps and provide voltage tweaking software stock with the card and usually provide the best OCs. usually for the same price as other MFGs. they do have the standard 3 year warranty which is decent. some ATI MFGs only have a 1 year warranty...

The ram you picked is fine, just know that triple channel is a lot like dual channel when it 1st debuted...it provided next to no performance gains. right now it's mainly marketing. you can probably get an 8GB dual channel kit for the same price as the 6GB tri chan.

that looks kinda expensive for a 1TB drive. ive seen quality ones for around $90 and would be just as fast as the WD Black.

everything else looks good

edit...emphasizing better PSU. the HDD, case, RAM, and GFX card are all solid choices and you wont go wrong with getting all of them as listed. the PSU, however...how can you even think about a 380watt for an i7 gaming rig?? the CPU and GFX card alone will probably require 400 watts by themselves - the i7 920 is rated max 140w TDP and the GTX275 is more power hungry than the GTX260 which used as much as 225watts under full load.

Jif Jif Jif! I expected more out of you! Power supply ratings vary wildly, and everyone has gotten to a "more more more" fevered pitch. Truth is, for non-SLI, even with a power hungrier i720, that is enough, ESPECIALLY if it's a Seasonic that 380 means 380. Seasonic, Enermax, Corsair (Seasonic) or a few others out there, are fantastic power supplies. You obviously read a good article, as most rookies wouldn't make that choice.

I am not going to say it's giving you much room for growth, but I feel it would be enough. If you want more room, and IMHO one of the best PSUs out there, get this:

http://www.newegg.com/Product/Product.a ... 6817194035

Antec and PPC are both Seasonic by the way I believe, on the models you list Jif.

Antec 900 is good, but I can't help but put my bid in for the P180 or P182 from Antec. Absolutely adore this case, it's a piece of freaking art and engineering at it's best.

If you are looking to save money, I'd scrap the i720 and do a core2quad. Could easily save yourself 300-400 between mem, cpu, motherboard. I would be lying if I knew how Asus i720 offerrings were, but if you go core2quad, I can't reccomend Asus enough, my P5Q is great.

do not go ATI, that would be the biggest mistake you could make moving into this coming year, Nvidia is branching out heavier and heavier, more of the major development studios are signing over their souls to PhysX(an nVidia exclusive) after all this time, these processors are NOT found in ATI cards if the gaming industry moves into a physX standard you'll be hosed if you go for the ATI route.

Go with an Antec 1200 if you are concerned about space. Although, honestly a 900 is more than enough room for a single GTX series card.
http://www.newegg.com/Product/Product.a ... tec%201200

As for PSUs, I recommend OCZ. I've used countless OCZ PSU's in the past few years and they haven't failed me yet. Go with a 600-700 watt model.
http://www.newegg.com/Product/Product.a ... 6817341019

And I agree with Elric, go Nvidia. Maybe even a GTX 295 if you can afford it. It's basically 2 GFX cards in one.
http://www.newegg.com/Product/Product.a ... 6814130453

Or as an alternative, go with a GTX 275
http://www.newegg.com/Product/Product.a ... 6814130479

Ok, I am definitely sticking with the GTX 275.

As for CPU, the i7 is just as expensive at the Q9550 and E8600.
Question: Even though the i7 is .5GHZ less it is still faster, right?

As for the Case: I think I may go for the Antec 902. I may need to expand in the future, kinda overkill atm.

And for PSU: If the OCZ is a good quality PSU I will go with it. More wattage for a cheaper price.

Thanks for the input! Keep it up!

The PSU problem has been solved, I have a 700watt PSU now.

Ok I am changing Once again and going with the Cooler Master HAF.
It is cheaper than the Antec 902 plus it has bigger fans, which means it will move more air and be a little quiter. I don't really like the look of it, but not too many people are going to be looking at it. If the inside is setup better than the Antec that is a plus also.

The OCZ one fox linked, My original post is updated now.

Windows 7 RC1 is free. use it until it's released and buy it if youre into that sorta thing...