Right now, I keep all of my projects on my laptop. I'm thinking that I shouldn't do this, but instead use a version control system and check them in/out from an external hosting repository (Google Code, SourceForge, etc). I see several benefits here - first, I don't have to worry about losing my code if my computer crashes and burns or my external HDD crashes and burns; second, I can share my code with the world and perhaps even get more help when I need it.
Is this a good idea? If so, what are some other project hosts that I should investigate (other than Google Code and SourceForge)?