Good news: I think my battery is OK.

I don't know Bo about electricity, but you could try testing for current at the fuse box with the ignition off.

Im not an electrical guy either but some of the guys here are will probably chime in shortly.  Instead of giving my own advise, Im posting a link to a pretty good electrical troubleshooting post from another forum.  If I offend the forum gods by posting from another forum I apologize in advance.  Scroll down a bit to the post by ...ROGER...  Hope this will help you some.

http://forums.corvetteforum.com/c3-tech-performance/1783718-battery-dies-in-my-82-cant-locate-cause.html

Parasitic draw on these old turds will definitely drain a battery after a few days....most of us have just come to accept it, and use the quick dis-connects on the batteries.
A couple of the most common drain problems are the clock, and the alternator. The alarm systems can also cause excessive drain, but there are usually other symptoms associated with that, such as an alarm that don't work, or blows the horn all the time. Un-plugging the relay will tell if it is an alarm issue.
Aftermarket stereos and other additions can also be a source of excessive drain.
These cars are old....with old wiring and stuff. Battery drain is part of the joy of owning them.... NOT!

Thanks, guys!  Good info.  Joel, you might be on to something with the clock.  When I was putting everything together this summer I fiddled around with my two mechanical clocks and got one of them working.  It even worked for a few weeks or so after I got it in.  But now it don't.  Possibly it's still causing a draw?  Chip, your link to the "other forum" was helpful, too.  (don't feel bad, I lurk there sometimes, but you do have to wade through a lot of infighting).  They mentioned the mechanical clocks on there, too.  I'll get out the test light and start playing around with stuff.  

Dave, you are right about the "other forum", lots of good information there but also lots of egos and attitudes.  I lurk but rarely post there and consider C3VR my home, Im comfortable here.  Good luck with finding your current draw.

In my past experience, I have found that it can often be caused by a faulty starter.  A dead spot.  I am not saying that the starter will even show any signs of an issue even.  But it will draw your battery down.  The best way to know is to have it tested.  Which is a PITA.  You can disconnect the positive lead from the solenoid, and let it sit.  If it does not drain then you have ruled out the soleniod. And a short in the switch on the steering column.  Then disconnect the main battery cable and do the same. Sit for a couple of days and see if it drains. If it doesn't then the starter IS likely the issue.

Mine can sit for two months with everything connected and still start.  You don't have to live with it.

NO disrespect to anyone, but....I'm not getting this one...
Disconnecting the cable from the starter will effectively kill ALL power to the car, so...there would be no drain at all...kinda like disconnecting the cable from the battery. Unless I'm missing something from the Zenmaster's, or the previous posts. Unless you keep the pink feed wires connected to the disconnected main starter cable, that is....
Did I miss something, or is my pea brain really that damaged from the '70s....

Using an amp meter and pulling fuses will certainly find the cause of excessive drain....but I'm just too dang lazy...and not flexible enough to hang upside down under the dash pullin fuses....

Good to see ya on the forums again, Ken!

So I finally started doing some diagnosis on this problem.  It looks like it's the courtesy light circuit.  With an ammeter inline on one of the batt cables I pull about .33 amps with the doors and hood closed and all (that I know of) courtesy lights off.  If I pull that fuse, I show no current draw at all with the same conditions.  Any thoughts how that particular circuit would draw current with all the lights off?  Is there something else on that circuit?