2. X4 945 nonblack (use at stock speed, will not overclock this)
My suggestion is due to the fact that he will not overclock the 945.....
It's actually easier to overclock the 945 as opposed to the 720BE - by simply bumping the base clock to 227 the OP will overclock the 945 to 3.4GHz with the IMC/NB rising to 2270MHz.
With the 720BE he will have to adjust both the cpu multi and the NB multi.
And I cheated you - the guys at XS are getting the 95w Phenom 945 to base clock 240MHz at stock volts (IMC/NB 2400MHz) - LOL - I was being safe and conservative.
I didn't want to hear cries of FUD at 3.6GHz
The 720BE is great but the OP - with "3dsmax, povray, cinebench" - answered his own question. Gotta go with the guaranteed quad core.