My partner and I have been debating switching over to them, since we can not get the old style housings anymore and wanted to put 4 TI 600's over the aero/fog tray we are setting up. Tho I may go ahead with a homebuilt light soon instead.
What's your thoughts on the problems with the new style body. As for the TI Smart Bars, I consider the water coolig a plus. Very little heat load added to the room i would think. If I could fault the TI Smart bollm, or most other lamps for that matter, it;s the haphazrd way they dispose of the "colling air discarge".

Rolling your own is probably the best way to go, as you said.

M.P.