Check out Avant Browser for IE. It's a shell around IE that provides tabs and a bunch of other cool functions. Very cool, and has just become somewhat stable with the latest release.
Combine Avant Browser with RoboForm and you have some serious time saving tools.
One problem - It doesn't support the Alexa tool bar. Google is supported, but I've founf the page rank indicator needs to be refreshed in new windows. Pretty buggy.
For the MS Haters: yes - you can get multiple viruses and trojans much more quickly now
