Good news is I got to put another 40 miles on the car today; bad news is I was driving it back to the shop... I had planned to adjust the rear brakes and pull the shifter in prep for the bushing, but those plans changed when I found the puddle of coolant under the car. I checked all the usual places for leaks but found none; all I could tell was it was dripping from the bell housing. I filled it up and let it run until hot and then let it sit a few hours; no more leaks. However, I called up Ray and he said drop it off for a pressure check.
What do you think, freeze plug? The motor was built about 4 years ago and this is the first time it's had any miles on it.