Can you recommend me a desktop computer? (Details follow)

I haven’t paid much attention to recent developments in hardware. The last processor I rooted for was the Athlon X2.

The Dinosaur (as I affectionately term my desktop) is an ‘05 model HP Pavilion a1320n. Suffice it to say, I want something newer.

Since money’s not on our good side right now, I need to save the pennies, so this is a recommendation for the near future.

I’m looking for:

1. Price. To jump the gun on the fanboys, I’d love to have a Mac, but they’re too damned expensive.

2. Some video and photo editing. I’m not making movies, but I do mess with home videos from time to time.

3. A little light gaming. The compy I have right now is incapable of running Fable (yeah, the first one). This is unacceptable.

Would I need a Desktop? Would a lappy be just as good? Intel or AMD? Does it matter?