I use Miranda like S1lv3r. It has plugins for
everything (My personal favourite is the status change monitor. It monitors everyone's status changes, so you know if you missed anyone while they were online, what time they were last online, etc.) Also because it runs on plugins, you can take off whatever you don't like including protocols. Makes it real small and light. Also because of the competition of plugins, some of them, like the History++ are
very good. Makes the standard ones on other IM software look positively prehistoric. Oh yeah, and being able to go into away mode once, and it automatically change it for ICQ, MSN and IRC (using mIRC) is rather nice