I have no problems with Vista's UAC. Really. I started using vista after SP1, and the UAC just shows up a few times, usually when I try to install something, or when another program tries to install something. UAC helped me prevent from installing those annoying self-updaters and so forth. It's a good feature. Mac OS…

I've been using readbag ( [readbag.com] ), and I think it's more useful, since it has more ways to share the links stored in the site. Another advantage, IMHO, is that you can use your google account to log in.

One very good site that compares a lot of AV programs is this: