I don't, but plenty of people do - although with a TV you sit a lot further back. Bear in mind that the resolution of a 30" PC screen is much higher than that of a TV. Dell's new 3008WFP looks very tasty according to the initial reviews.
The Dell 30" has a really great resolution but a really big price, too. TVs have a small(er) resolution, so you might get some headache about sitting too close to it. But look at the price tag compared to the 30" Dell!
I played games on my 36" LCD, it ran in HD aswell, but where the TV is positioned meant I would have to get another wireless keyboard and mouse, and I havn't bothered to yet! I'd much rather have a bigger monitor anyway... Go for the 30" Dell, but make sure you have a stunning system to be able to play at that resolution... 1080p/i = 1,920x1,080 Dell 3007WFP = 2560x1600
ive been playing on my 720p projector at 80" recently, trackmania ultimate looks great upside of the 1080p screens is you dont need SLI or an Ultra to get decent framerates....
