My ancient 21" CRT died just before christmas (cost me £850! lol)
But seeing as i'm on a tight budget, i could'nt get the LCD i wanted (24" Dell), so I had to settle for a £150 19" Widescreen BenQ... which isn't actually toooooooo bad!
Nikesh: 16:10 is normal for widescreen LCDs as far as im aware, for instance mine runs at 1440x900, which is 16:10.
As for your gfx card, your current one will be absolutely fine (i'm running on an old GeForce 3 Ti200).