Me being the cheap bastard that I am decided to make my own..... So I got me this in 12v:
http://www.ebay.com/itm/111045750855?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
and raided a PC fan and the glad ware from the cupboard, and an AC adapter and created this...works like a charm and...