Whooshes, slams, clangs, tings, electronic type-on sounds. Search free sound FX and you'll find a lot. If you want to buy something, again, there is lots out there. VideoCopilot for example have a set of motion sound design fx pack.
Whatever you do (and depending on the program you are making) keep it subtle.
One trick I use often is to take any sound FX and run it slower or faster (usually slower) in Premiere Pro for a unique sound.