I've owned 2 air's, I have a MacBook Pro, a BlackBook and now the Alu MacBook and I can tell you first hand that the MacBook screen is not bad at all. It blows the BlackBook's screen out of the water, it obviously can't mess with the MacBook Air because that thing is seriously perfect. The MBP classic has a really good screen but you obviously pay for it. The new MBP has a better screen than the MB but not by miles, the glass is still an issue.
If this is your first computer, you're about to have your world rocked. I got the 2.4GHZ Alu MacBook brand new for $1250 yesterday, but I was ready to pay $1600, It's seriously a lot of computer, and for the size it really is like a mini MBP. It's worth every penny.