It's just like any other hub. You will need straight pull spokes for this one and the length will depend on your rims. I just ordered one and will have my lbs build it using one of my existing wheels.
ps: I got mine from trisporsts.com and they're on back order till the 23rd. I went with them because I'm a Campy guy and the optional Campy hub that goes for another $99 everywhere else is included in the price.