well...so far speaking about the hardware side I have USB VAG KKL interfaces that I modded to detect battery/ignition and the two BMW klines; I also have RS232 VAG KKL but did not test yet; in addition I also have a ELM327 (but seems useless for BMW but is a MUST for fiat/alfa/lancia);
speaking about software I am using:
- GT1/DIS v57; not bad but no coding programming functions;
- EDIABAS suite (trying to have the latest INPA to fully diagnosis my E83); excellent product family (NCS, WinFKP);
- Progman: excellent and quite easy and straight to use;
- ISIS/ISSS/ISTA-D: trying to get it they say it is a must but very very heavy software.

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I could show my BMW but I prefer to show my wife boobs...but, sorry, only by pic.