If you want to have pretty picture and music
FREE, but not open source yet!
Aviary just made a dramatic release of free image, music tools to public. It includes:
(1) Image Editor, edit existing image
(2) Music Editor, NEW!
(3) Screen capture, make a pretty, sharp screen capture
(4) Audio Editor, create Music
(5) Vector Editor, editor vector image
(6) Image Markup, create Image online
(7) Effects Editor, bring some cool effects
(8) Color Editor, for editing amazing color