I have an Intel 2.8 GHz processor with a 256MB NVidia Graphics card and 1 GB ram. It works well so far but like jsprogg said, I wish I had 2 GB Ram instead.
Seems like more people might use Athlon but right now I'm more than happy with my Intel.
Don't be satisfied with what you can do but rather strive to do the things you can't do!
Exceed Expectations!