Mark Russinovich (Ex www.sysinternals.com now Microsoft) has a great article about Windows Vista's User Account Control feature in the latest TechNet Magazine. I agree with his introduction that UAC is mostly misunderstood. Recommended read, because he not only explains the why, but the how, too.

BTW, SwyxIt! v6.02 is Windows Vista compatible, even if this information cannot be found on the Swyx website.