I'd probably get the 4600+ instead of the 5000+ because of the wonky ram timings thingy on 5000+, which at stock makes it 768 or something weird, which it'll automatically bring back to 667. If you overclock it some amount, it'll go upto ddr2-800 speeds but by then the 4600 will be some 832 or something like that. I dunno, I'm pulling things out of my butt right now but there's something witht eh 5000+ that doesn't make it a prime choice. Or if you want, you can buy something like a 3800 and wait for 65nm, but who wants to wait, lol.