Thanks for your suggestions and thanks for the welcome, 6NoisyHikers.
Gitchee-Gummee, I just signed up for a Premium membership earlier today so maybe the software hasn't updated all the details yet.
Yes, indeed, it does look like Markwell's suggestion of using the geocache.com seek function is exactly what I need. Shesh, why didn't I see that first! D'oh!
Gitchee-Gummee, thanks for pointing out that data can get stale and that I may as well not have too many caches stored on my device at any one time. I wanted to have some handy so that if I found myself with extra time while in a certain part of town I could just grab the GPS and go for a quick cache hunt. I guess I could just refresh my data bank now and then, eh? Maybe that's where the Pocket Query will come in handy - is that part of its beauty, that it can refresh the info on a regular basis?
I'll have to take a closer look at that now....