the build nderscore linked is going to be faster, especially when overclocked. unless you just have to get an AMD, which i wont judge i love AMD. stock speeds, no ginormous difference. so, those really are the defining factors, do you want AMD and are you going to overclock?
if you are going AMD, the only thing i would change in your build would be swap the 5000 with this 5400 Black Edition:
Newegg.com - AMD Athlon 64 X2 5400+ Brisbane 2.8GHz 2 x 512KB L2 Cache Socket AM2 65W Dual-Core black edition Processor - Processors - Desktops
it will make overclocking much easier, if you plan on it. man...they are giving those things away now. i bought a 5000 BE for about 120 early this year.
"nagasama no longer drinks tecate, or streaks out of the night for anything, and he has a fine wife so he has no use for your girlfriend...she is safe..."