I personally am very happy with my Athlon64 3200+ (venice) and my A8N-E.
The mobo isnt the best of the best, but it does what it's suppose to do and it's quite cheap.
I'm running my proc @ 2.4Ghz (standard 2.0) and if I didn't have such crappy memory I would
be able to stretch it a lot further.
Out of the 3 reviews I've read about the 3200+, 2 could get it @ 2.7 and one got it to 2.8.
So if you get (or already own) really good memory I would really advice the 3200+ and the price
is ofcourse very attractive.
here are 2 articles that might help you choose. (It's about the influence of procs in games and compares
somewhat all of nowadays procs)
Link1
Link2