[CQ-Contest] mass QSL-card address-label printing?

[wx3m at comcast.net]

I have bee a ham for over 12 years, and have been contesting (on and off)
for most of that time. I have also been casually chasing DX. I have only
kept a semi-accurate, semi-inclusive "log" and have never sent a QSL card in
my life. (long story)

I have turned over a new leaf and would like to QSL some (many, actually,
but not all) of my contacts, including a couple of particular contests. (I
am going through a paper-chasing phase, I think, and I like the idea,
conceptually, and am resistant to just "let it go" without trying it.)

If I order cards, and print labels, and stick them and sort them (though
they print already mostly sorted), DX cards can be bundled and shipped to
the outgoing buro real easy. However, here is my dilemma: How can I address
domestic cards for domestic contests to be mailed as postcards in an
automated way? What I mean is this: I can print the QSO labels from NA real
easy, then stick them on cards. The hard part is addressing them. Is there a
program/utility that will generate the address labels? For instance, if I
"upload" my callsign list from a contest, will it look up each call and take
the US address info and put it on a label and then print it and then look up
the next call, and so forth?

What I am trying to avoid is having to manually look up each address for,
say, an NAQP log with 800 QSOs in it, or a Sweepstakes log with 1500 QSOs in
it.

I know this looks like QSL-card "spamming" on the surface, but I am not
really envisioning/intending for it to be that (please put down your
flogging devices...).

Help? Advice?

Feel free to respond directly...

Thanks,
Don
WX3M