And all of the Athlon 64's out right now are just killer bang-for-the-buck propositions for gaming. For $323 you can buy a 3800+ that out-performs every Intel desktop CPU in existence in games, including $1,000 Extreme Editions.
And if you have the budget, the x2 processors are all-around monsters. They dominate Intel at almost EVERYTHING. They are pricey, however.
Ive had quite a few AMDs I have thought highly of over the years but my current favorite is my 3800 X-2 at 2.5. In my opinion, for my use, its one of the best values out there.
Back in the day my old favorites were the unlocked Barton 2500s. One could do amazing things with those with a bit of time and conductive lacquer.
i know the 3800+ venice is not the best bang for the buck...but i love my 3800+...b/c of the variability in 3200+/3000+ overclocking, the 3800+ let me hit 2.760ghz on air with ease.