actually i've seen this on a forum and yes it's indeed computer fans, one of my friends done this over here and he says it's very nice setup and the banshee cooling is much more and didn't heat at all with him
now it's over a year and fans still ok, anyway it's very cheap one i guess both will cost around 20$, once the banshee is moving fans moves much more fast as the stator will be working
this is the original topic but in arabic, you can check the photos....
http://www.t63ys.com/vb/t151801.html
it's just that i dont like the idea of putting the front grill like that, but looks like am gonna do it very soon but am planing to put one bigger fan if amp is low or the same 2
and i'll put different switch not with lights