i think i do AMD phenom X2 black (so its a 4 core chip but one is faulty so they turn it into a dual core, but once unlocked you can have a triple core) and yeah when i last upgraded my GFX card from a 7600 to a 450 my 600W supply was causing HDD failures left right and center. we replaced almost everything in it including the hdd's, thinking it was a faulty part, it turned out it was the PSU so now i always buy bigger than i expect to need, just so i have the extra wiggle room should i upgrade something which requires that little more power
eBay is just fine, you just gotta watch the sellers. Make sure they accept paypal, check their feedback (As Sellers - And on what sort of items!), make sure other items they sold were towards legit buyers, etc, etc. And make sure you get a lot of pics, and a clear description of the product you're buying. If you've got any doubts... Don't do it. And if it sounds too good to be true, it isn't. Again, eBay is a good tool, but you got to be extremely careful. And always use PayPal!
BTW, I think Nobby runs one of those Crayzy-Hungry AMD beasts, those need 150 watts by themselves lol
Why run OS X? With 8Gb RAM I could run whatever program I wanted, on Windows ^.^ Plus AMD CPUs are much cheaper, and must importantly, unlocked (So they can be OC'd ) AMD mobos are cheaper as well
I did quite a lot of comparison between AMD CPUs of this price range, so this is pretty much the best you can get AMD-wise. The only Intel that got close was an i3 which was, if I recall correctly, even a bit slower.