if you are going to spend that much money, depending on the size of your room, buy a large monitor. if you are only going to be sitting 6 feet away from the screen, that tv will just be too large. the pixels will be the size of your eyeballs.
dont get me wrong, of all the tvs out there right now, with this bullshit smart tv craze, samsung is the best of the bunch, but if i remember right, they are using lg panels, so there isnt going to be any quality difference between lg or samsung, its just hardware and software features at that point. and a pricetag.
go for picture quality, which is largely two things: depth of blacks and ppi. you want the smallest screen you can get, while still being 1080p, for the ppi. if you get a 30 inch monitor, it will be 1440p, which is still a pretty good ppi. depth of black is all about the quality of the panel you buy.
if you go with a tv, its a crapshoot. tvs are tvs, might as well go in, find something you like the color of, buy it, and hope that the one you get will be the same. its essentially just the cheapest lg panel you can find at that point. the only difference between tvs these days is the physical/software bells and whistles.
my suggestion: if you arent going to be sitting very far away from it, get an ips monitor. they are essentially pictured true to life, they are the same panels that photo editors use for true color matching. beautiful panels, ridiculous color depth, great blacks. however, they are monitors, there arent any reasonably priced ips tvs. dell makes great monitors, they use lgs panels as well, but have much better features and calibration software. samsung are pretty solid, but their better known for tn panels. hp makes a decent one for the price.
this is their monitor with all the tv connections, get it soon, i dont think they will be selling this much longer: (27 inch)http://accessories.us.dell.com/sna/prod ... u=224-8284
this one is an ips-e panel, so not nearly as much color depth or gamut, but still a good panel. solid blacks. (30 inch)http://accessories.us.dell.com/sna/prod ... u=225-4429
the newer version of the aforementioned 27 inch. sacrifices component and composite, adds a dp connection and usb 3http://accessories.us.dell.com/sna/prod ... u=225-4148