ChrisC
Established
....
2. Summilux 35 or 50 mm Lens - $2000-$4000 (depending on version)
3. New desktop computer
What else.....
You can save on the lenses unless you are absolutely insistent on f1.4. For 35mm the Zeiss C-Biogon f2.8 is a spankingly fantastic lens, with it you can also throw in a Manfrotto 685B [super fast, long] monopod, and this wonderfully shaped lens hood :
http://bophoto.typepad.com/bophoto/2010/09/new-lens-hood-for-voigtlander-35mm-14.html#more
Consider the stellar Zeiss 50mm Planar f2.0
I can't use the M8 without a Megapearls 1.15 variable dioptre magnifier; it changed the camera for me.
If going the Mac route. It might be worth considering a different option. Maybe combine a relatively 'low' spec. Mac Mini combined with a top spec 30 inch NEC monitor, with a view to replacing the 'mini' in , maybe, 2-3 years. Computing power is being driven by greater demands than photographers, so we really don't need the screaming spec. computers for our most general work.
Treat yourself to a subscription to Sean Reid's excellent Reid Reviews where Sean will provide superb appraisal of the digital 'M' platform.
........... Chris