There are also currently some CPU accelerators for the A4000 on ebay.

Amiga A4000, Commodore 040 board, with FPU

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=320177356526

This is an official Commodore A3640 CPU daughter board for the A4000 (I asked the seller and he confirmed this). This is the board that comes in a standard A4000/40, so is a good upgrade for any A4000/30 owner. It can also be used in an A3000.

Currently it is going for only £20, but doesn't end until 11/11/07 at 15:13 GMT.

Amiga 3000/4000 Cyberstorm 68060 CPU accelerator card

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=110189799808

This is a rare 68060 accelerator CPU daughter board for the A4000 or A3000.

This is being sold in Australia so check the postage before bidding. It's currently going for AU $440 (£195) and will end on 16.11.07 at 10:00 GMT.