What options are people out there using for engine management?

Instead of getting a bolt on chip I've been looking around at the other stuff.

Megasquirt looks kinda complicated to set up!

Are there any plug in devices like superchips Bluefin for the e34. Bluefin is a handheld device that plugs into the dash, records your stock ratios and downloads hot ones. Takes 5 min and you can put the standard tune back in just as easily.