I have this light. I think it is exactly what you are looking for.
http://www.jlaquatics.com/cgi-bin/sh...gno=pc-ll48654
It will be available in about 1-2 weeks as soon as I get my MH lights set up
PM me if you are interested they are about 1 month old
I will also have a 175 w MH light available at the same time ballast, socket & lamp
Robert