Thanks, & I will when I get more parts.
yep, the fan came with the Hvmaxx, but it can be found here:
http://www2.towerhobbies.com/cgi-bin...?&I=LXJUR6&P=M
Its a bit expensive at 21 bucks, but it does come with a mounting bracket and lead that plugs straight into the esc. It is also a tiny bit smaller than 40mm, which means a pc fan would need a custom mount made and a power supply- tap into the battery wires or something....
As for gearing- at the moment its still locked into first and running 13/66. This will very likely change pretty quickly once Im up and running, but i would be greatful of suggestions for gearing; say 11lb gmaxx running hvmaxx and 14.4v-?