I'll actually be going to the PBOC homstead miami HPDE weekend June 13-14th, I think another 135i will be coming with me and maybe some guys from Active Autowerke so that's something for you guys to look into! I've done 2 events with them already (Homestead last month and Sebring 2 weeks ago) and they were awesome.
www.pbocflorida.com for information.
Original post on 1addicts with more information:
http://www.1addicts.com/forums/showthread.php?t=265698