Here's where I got my last batch of fans from. The price has went up slightly since then, but still cheaper then the Novak.
http://www.buyextras.com/dc5vfaforlan.html
Also, get a servo extension and pull the red wire from it instead of the MM. Pulling the wires sometimes damages the connectors so when you go to put it back in. It doesn't "Click" and stay like it should.
Send me a pm with you address and I will ship you a cap.