I'm gonna post in the other thread too.
If you already have a 22" 1680x1050, don't waste your money upgrading to 1920x1080--spend that money on a graphics card. The 1920x1080 monitors have 17.5% more pixels--that means about 15% lower framerates. With a midrange card like yours, that will actually matter.
I have a 1920x1080 (1080p) monitor at work and a 1680x1050 at home. I don't notice enough of a difference to care between the two--but I would notice the fps difference (if they had comparable gaming cards). That's why I prefer resolutions no higher than 1600x900 on laptops--because anemic laptop graphics cards do better at lower resolutions. Personally, I prefer the shape of 1680x1050--it fits 11x17 construction drawings better.