Tamjets.com recently released another great addition to their lineup of fans, the TJ70. Currently only the shroud is available, so you'll have to provide your own rotor and motor. I'll be using an E-flite 3600kv 28mm motor with the rotor and collet out of an E-flite DF15 unit.
Tam currently offers 2 varieties of the shroud, one for 28mm motors (E-flite, etc.) and the other for 29mm motors (Neu, etc.). Keep an eye open for my more detailed review here on RCGroups.