Originally posted by TFR
I think its a Nosram Dominator Power or the new Evolution.
Yup, looks like a Nosram Evolution with a nice heatsink ontop. LRP Quantum Competition 2 in a different case and cheaper
M-Troniks Cirrus is cheaper still in the UK and even nicer
M-Troniks website has been completely overhauled, looks very nice now and has info on the Cirrus
For stock racing alloy shaft holders and 48dp gears works well
Just make sure your main drive shaft is straight every now and again, the graphite shaft can move slightly in the alloy end pieces and cause spur wobble. A good way to check for straightness is roll it along a flat table with the spur mounting bits just off the edge of the table of course.
justinalamode- try doing a post based search, it's a question answered many times now in this thread. In short there is very little difference, it almost a choice between sparkly graphite or easy access spur gears.