Selling a Sinar M in good condition; until very recently I had this mounted on my P3 with a Sinarback 54H taking pictures. I'll throw in an LC shutter (no cable, you'll have to order that from a Sinar distributor yourself).
Looking for $1000; the Sinarback is also up for grabs (complete system, comes with old Powerbook, Magma PCI to Cardbus box, fiber cable, and power supply) for oh, say, $700, but it is very old and not particularly fun to use. Makes great pictures in 4-shot mode though.