MYie2
MYie2 is by far the best in IMHO, it stops all popups and yet if you need to enable them there is a little tag in the bottom right of the browser just click it and you have enabled popups, it is also sooo configurable that everyone can customise it to there own taste, i have been useing this browser since it was recomended on here about 18 months ago and i will never go back to IE.
it runs off some of IE's components but dont let that put you off, it is quick around the net and sooo easy to use, there are also loads of skins for it if that takes your fancy.
yep im a die hard MYie2 fan lol.