Hands down, the Rogue kit is the best on the market. An installation overview can be found in the DIY section here:
http://www.m3post.com/forums/showthread.php?
FYI: UUC and Rogue shifters are the
only assemblies on the market that utilize a full replacement carrier assembly, rather than simply a shifter lever with a different fulcrum point or reselling a stock BMW carrier to you.