Drivers for the onboard sound were on the CD, but I used my old sound card, so I didn't need them. Alarm levels can be set for all parameters. An audible alarm or a popup box would been a better idea. The other drawback of the 1st Aid utility is that it accesses the hard disk every 2 seconds, which degraded my disk benchmark performance during random access testing. I removed 1st Aid from my Startup folder and now run it only if I want to check my temperatures.
Performance is good overall.
CPU performance doubled, as expected with the megahertz difference. It feels good, and System Shock 2 runs noticeably smoother now. In retrospect, I think I would've been happier with a new case, a quality ATX board and a Celeron processor, but then, I'd have been out another hundred bucks.