Know Thy PC
Everything you ever wanted to know about your computer but were afraid to ask, AIDA32 tells you. It's information overload. An AIDA32 generated report tells you TOO much about your PC - how fast it is, what drivers are installed, services its running, where it was last night when you sat up worrying and didn't receive so much as a phone call.
Anyway, it's an excellent diagnostic utility to have.