Everyone is a fan boy for AB's. Look into other lights as well. All the ones that NTP offers are great and they have kits that are really awesome to start out with and it comes with everything for like +/- $500 for one of the better kits.

They have all these:
Interfit
Photogenic
Wescott
Elinchrom
Photoflex
Profoto
Photek
RPS Studio Systems
Bogen Imaging
Savage Paper

I asked them straight up about the AB's and such, and they are almost a proprietary deal, and theres only like one place/person you can send it to to get fixed or checked out. So say if you bought here, its local (somewhat) and there wouldnt be as much down time etc etc...AB's do great, but I have just been doing my research and have seen what would be more logical and stuff...