I think that this will take care of any cooling issues

used Aluminum Heat Sink 9 7/8" x 6" x 2 ", 388sq Dissip - eBay (item 180626613955 end time Feb-22-11 11:05:02 PST)

And I know I have some old pc fans laying around too. This will take care of the 24V

SCHIELE SYSTRON PS 24V 2.423.417.00 POWER SUPPLY - eBay (item 280618533522 end time Feb-18-11 10:27:33 PST)

Wont be too much longer before I start building this thing I hope.