tecmo34 :
Welcome to Tom's Hardware...
For a non-gamer, the best all around CPU is probably the
Phenom II X4 955 at $150. If that is outside your budget, I would look at the
Athlon II X4 640, which is a quad-core CPU under $100.
I agree. But before we solidify that, a couple questions:
-what specifically do you use the computer for?
-is power savings important to you (electricity)?
-how much do you want to spend?
-How long do you plan to keep the CPU without upgrading?
For most office environments for example, an Athlon IIx2 240 (~$50-60 is more than enough. If you aren't into undervolting and want power savings, the 240e could work for a higher price.
If you are into heavy virtualization or video encoding, the Phenom IIx6 1055t (~$180-190) could be perfect.