@Basil:
Ever tried this ?
DFX Transverb
Transverb is like a delay plugin, but it can play back the delay buffer at different speeds. Think of it like a tape loop with two independently-moving read heads. There are lots of parameters to control and a parameter randomizer for the impatient. Tom's first "released" plugin. Fun!
http://destroyfx.smartelectronix.com/
http://dfx.spacebar.org/p/transverb-win.zip