My turn to offer a freebie to the thread. I have two things, free to the first taker. All you have to do is pay shipping
1) Partially working Nikon MC-30 wired remote release. The connections around the thumb screw are a bit loose so it sometimes works, sometimes doesn\'t. Anyone willing to spend 10-15 minutes with a soldering iron and superglue can restore it to perfect working condition.
2) Phottix wired remote control for the Nikon D90. Not sure exactly which model this is, I know that it will work on the D90. I believe than the D7k uses the same type of connections so it should work there too. This one is in perfect working order - or at least was a couple of years ago when I still had my D90.