Pikilipita Advance (£20 delivered)
Pikilipita Advance is a software for live videos artists (VJs). It’s ready for an instant use: all the interactive video content is setup into the software. Following the same structure as old school games, the software is structured around levels. Each level is a kind of "mini game" where the user can interact in various ways to produce animated visuals.
http://www.pikilipita.com/pikilipita-advance/
Nanoloop 2.01 (£40 delivered)