Same here, i'm going to say bye bye to AMD soon. I'm tired of having a not perfectly running OS since i need to work with it. It's not just some fun. I know, some ppl might say "then use another, stable OS". Anyways, my decision is to use Leopard so i do whatever is necessary to get it stable (except buying a real and overpriced Mac).

So i've ordered the same hardware lanxxx got:
Gigabyte GA-EP35-DS3R
Intel Core 2 Quad Q6600 4 x 2,4GHz
and 4 Gig Kingston HyperX 2 GB Kit DDR2-1066

I'll give it a try with 4 gigs, i'm sure it'll work =) At least i hope so ^