i wanted to get a 4ft+ wide cab so i could put 4ft T5HO's in there, but that seems unlikely. this is just the right sort of thing; with a good lock, i think it would do well; i'm thinking the odds of getting something like this with 4ft+ wide is pretty slim

i could hang the fluoro fixture low and do SOG and just leave most of the top space for heat to rise, and get sucked out the back

anyway, interested in what y'all think. if i had some serious active cooling i could probably rig the hps, but the reason to go cab's in the first place is for low-profile and massive fans sucking air out the back raises my profile a lot