hi, i've been checking out the stuff here recently, having finally modded my poly mkII, thanks to olaf for the schematics.
anyway, searching the net i came across a handful of patches, i've added links to the respective sites, in the "links" section naturally, and also uploaded a sysex patch for the poly mkII factory bank, as there seemed to be none here - took me a while to realise the mkI and mkII are not interchangeable.
hope these are useful, i'll add the same links here too:
poly mkII patches http://www.pallium.com/bryan/polypatches.php
poly mki and EX800 http://blechturmstudios.fesch.at/blechturmstudios/korg.htm
allsorts http://analog.no/patch/
regards