Well, I just picked up a Opteron 146 (2.0Ghz) on a whim (being shipped right now), and I'm having second thoughts. I have a A64 3000+(1.8Ghz) that I've been running at 3800+ speed (2.4Ghz) for almost a year. Should I just return the Opteron and keep my A64? Please clarify your choice. Thanks!