itunes - Love how it organizes my music!
Phanfare - Best online photo album software ever!
flickr uploader - Probably a fave of many. :-)
Open office suite - It's free, unlike windows office. :-)
Limewire - for the tunes man! Mostly to test music before purchasing. ;-)
MS Office Accounting Express - Gotta keep what little finances I have in order. ;-)
That's all for now folks! :-)