and the forum's FAQ's are your friend.
As for a list of software, you should look in the categories for:
Navigation (iGuidance, MapMonkey, Mappoint, Streets and Trips, Destinator, ect...)
Frontend (RoadRunner
, $treetdeck, Centrafuse, FrodoPlayer, Amp, and lots lots more)
OS (XP, OSX, Various Linux distros)
Addins/Other (Phoco, NetStumbler, Winamp Sound plugins, TinyXP, ect...)
Personally I like the Roadrunner, Winamp 2.95, iGuidance, XP Pro combo.