Quick update, a friend who just returned from wintering in Florida finally returned my coolant system pressure tester which he borrowed last summer. Can't seem to find any leaks, system held 15 psi for over 6 hours.
Good news is, I now know what the mysterious part is; bad news is I have no idea where the mysterious drops of antifreeze came from....nothing leaking at all.
Since it was around St Pattys day that I noticed it, must have been a leprechaun sleeping it off under the hood and I scared the p**s out of him when I lifted the hood!
Will be keeping an eye on it and will report back if I find anything, thanks all.