I'm a big fan of open source and freeware stuff. The funny thing is that I somehow end up never ever finding stuff that has spyware or the like attached. I don't know why this is. Perhaps I'm just lucky, or perhaps spyware and virii simply don't exist.
In either case, I've come across this website that has a list of the best freeware listed by type. I highly reccommend you take a look.