The Thousand Parsec project is always looking for new developers. Already a bunch of SOC rejects have decided to help out. You can find more information about it at http://www.thousandparsec.net/tp/.

Gnome still has a bunch of bounties offered from Novell. Plus they are always intrested in new ideas and new developers. See http://www.gnome.org/bounties/ for more information on the bounties or http://www.gnome.org/ for more information in general.