i used a 125w fluoro last year with master kush from start to finish.
3 plants - master kush in 3 gallon pots.
i got the light and reflector from ezhydro on ebay. it is a dual light. i started with blue and simply flipped the light over when i went 12/12.
it worked like a charm. heat is very low. i could spray the plants with water and not worry about popping a very hot HID bulb. electric costs were barely noticeable.
here's a link -- it worked (and is working great for me)
http://cgi.ebay.com/ws/eBayISAPI.dll...sPageName=WDVW