Two interesting approaches if you have the right images...
http://www.beckhamdigital.co.uk/onli...otit/gotit.htm http://www.beckhamdigital.co.uk/onli...er/painter.htm
More of a background than a frame, but interesting nonetheless:
http://www.beckhamdigital.co.uk/onli...utup/cutup.htm
Courtesy of Barry Beckham.
Note: Although based on Photoshop 5, these methods apply to all versions since then.