JiveTalk - If you need IM access across many platforms.
WeatherBug Direct - Free, convienent, and has alerts for severe weather.
CB Launcher - A Must.
Viigo - I wanna stay current on many things.
Opera Mini - I only use this to download files to my media Card (Documents, CB Podcasts , etc.)
Others programs I have:
Texas Hold'Em Kings 3 - I'm a big poker fan.
Ascendo Data Vault - Very easy to use and a life saver lol.
BBForums and BBFAQ - Shortcuts.
Cram - Just study when I need to.
And I got the bPhone and Vista themes, but I just have a thing for the BB Dimension L theme.
That's just what I use.. Whatever makes my life easier