Ed(?) at K&M Associates used to carry a few of the T5 bulb lines, I know he carried the ATi blue plus and the UVl super actinic bulbs which IMO are the best blue & actinic T5 bulbs out there. He's over near golden gate park, I don't have his email handy, but here's his webpage
http://kmaintl.homestead.com/
He used to be a BAR sponsor, I don't see him on the sponsor page anymore so I guess that's changed (although I see the banner on his website ). Good prices on the bulbs too.