'Twas brillig, and the slithy toves did gyre and gimble in the wabe

Oh, there's no end of possible permutations of toolbars and menus and suchlike, for the real tweakers. That does of course assume that your browser can do such - the main (and possibly only) thing that's putting me off IE7/8 is the lack of such customisability. The address bar shall be at the top of the window, the tab bar shall be at the bottom. Out of all the others, Opera is closest to what I want, but it's still not ideal.

My ideal browser would be the latest Internet Explorer or Opera rendering engine, combined with the Internet Explorer 6 interface and system integration and with support for multiple distinct sessions that share bookmarks/history/persistent cookies. The latter is something that I've only ever seen in IE, and is incredibly useful when you want to do two separate queries on a session-based site (e.g. the National Rail journey planner).