Thanks again all. I did go out and buy a two-part circuit tracker and
am now in the process of mapping all of the circuits in the house.
Once I'm done doing that, I can turn off the ones that I think might be
going to the affected room, and pull down the overhead light. I'm
really thinking that I'm going to find the problem there...loose wire
or something to that effect. If not, then it's definitately time for a
pro (at least I'll have the house mapped!). Since it's starting to get
late today, and back to work tomorrow, I probably won't get much more
done until next weekend (luckily the problem is in a room that isn't
being used right now!). So, I'll post what I find next weekend. I
really appreciate all the help and words of advice...it helped point me
in the right direction. Hope everyone has a Happy New Year!