I use google toolbar, its handy as theres a box that you can type in and click enter to go strait to a search. You can also see sites PR rating which is very handy for me

I don't use a pop-up blocker. The one built into Firefox works fine.

Same here > Built in Firefox blocker

Computer 1 (IE, FF): SP2 (IE), Firefox
Computer 2 (IE) : SP2 Pop-up Blocker, Pop Swatter

I never heard of this till now... I am using Firefox and it blocks some of the popups. Together with the tabbed option, this makes Firefox my favourite browser. but installing a separate program just to block popups seems too much for me.