I installed IE7 a couple of weeks ago, and I'm glad I did. My HTAs have never looked better (transparent PNGs!).

Oh, you guys are talking about online web browser usage? Firefox 2 here.

I have IE neutered, and the Windows Messenger service disabled (not to be confused with MSN Messenger, which I also don't use). IE+Windows Messenger is one hell of a superfast highway for malware. Even if you still want to use IE, please do yourself a favor and disable the messenger service; here's how to do so.