Basically you gotta be out there networkin, sendin messages callin phones etc.
From the people we have personally dealt with:
Johnny Cash charges 500, I think Fendi Boyz do too
Bavgate charges 2,000
F.A.B. charges like 1,500 or some shit.
But really you needa be out there talkin to them to find out, some got it on there myspace blogs and shit