I did the same with my pc and my 50" LCD. It was pretty cool at first, but after using it for a while, it started to give me headaches. I don't know if the size is the main reason, or if I'm just weird. Either way, after about a month like that, I switched back to using my 19" flat panel, and my eyes don't strain anymore, and no more headaches.
2002 Corvette --Sold
2009 Mazda CX7 GT--Turbo baby hauler
1976 #s matching Formula--Weekend fun