Just one at the moment, my own Cannondale which it's nearly finished, once finished, no more projects anymore, just got 3 steel Kona's frames to sell now.
My RC200F3 is working just nicely and takes everything thrown at it. Nothing to tinker with there.
I have very retro ('70s) road bike which I used to use for training, so I took off all the old campag record stuff and popped on some early '90s XT & XTR MTB bits I had lying about so I didn't wear out the old stuff.
It works and I now use it to commute, but I have been thinking about a putting a retro Kona together to commute on using the kit I put on the road bike and restore the road bike to it's former glory.