well, opera is nice too. i find icab is faster once i got it tweaked. took me a couple of weeks of fiddling here and there to do it though. two simple things that help are broadband optimizer and xoptimize. icab tends to get a boost from these, more so than ie or opera. i think the prebinding is a big help. hopefully future versions will prebind on their own.
second was changing the toolbar icon set. the default isn't bad, some of the custom sets really slow it down, and the one i am using now releases the speed. I think it os mac osxish aqua or some such. play with them til you find a good one. I would also agree with those who applaud omniweb. i would probably switch to it if it would just properly render a page i vist everyday. I've written and they ignore.
i think my biggest bitch about the new browsers is that none of them provide any better customer service than the old ones. none return emails, answer questions or even provide decent manuals. this is a shame. i've been very dissapointed in them from this aspect. if you want to make a better browser, you should be communicating with the people who use it. none of them seem to be in any hurry to make the best browser ever seen.