The kit I used was the meguiars g220 with the menzerna polish and pads.
I'm considering getting this:
http://www.cleanyourcar.co.uk/polish.../prod_677.html
Reviews seem pretty good, and I can't seem to find any friendly faces local to me who have a DA
I've been putting it off for a long while to buy one, but looking at your work, and popping in to DW every now and then it seems the only way to cure my OCDness with my car!
Did you find the paint particularly hard on this mini? At times a chisel comes to mind when I work on minor defects!