I've been lucky enough to get to use broncolor G4's for some studio work, and I'm starting to look into getting my own equipment. I was kind ot shocked to realize that between 3 heads, the power supply and some modifiers, I'm looking at about $20,000 for the gear I've been taking for granted. Is there really that much difference between using these and, for example, the AlienBee B1600's (aside from the obvious difference in power)? Given what I'm used to will, I be disappointed with a sub-$1000 lighting kit? What do the G4's really give me? I know people talk about consistancy in color and power, but are the cheaper lights noticibly bad? Thanks for any insight you can give.