Thanks, boomerscout, SSScout and Scoutnut, for your replies.
As for the purpose of the pack - we are starting a pack for homeschoolers to provide as much of the scouting experience as possible for the boys. My family has been involved in a "regular" (non-homeschooled) pack for a couple of years, and in addition to the meeting times being inconvenient for us (evenings), I was frustrated because we were unable to do more activities, due to the other families' work and school schedules.
We now have 8 families and 11 scouts. I cannot tell you where we will be next year, or 5, 10, 15 years from now. My hope is that we continue to grow to become a positive resource for homeschoolers for years to come. However, if there are no homeschoolers that are interested in scouting, in my mind, *that* will be the deciding factor, not whether we were self-chartered or had a CO.
But I am here to learn about getting a bank accout for a self-chartered pack, and what I am learning is that even though we are "BSA legal" with our 5 signatures on a piece of paper (and all of them registered, pd for and YPT'd), for pack stability and other practical reasons (e.g., bank account), it may not be desirable to be self-chartered.
It isn't clear to me how big a role the CO plays in running the pack - it was presented to me as almost unnecessary, that all they do is provide a meeting place for the pack. Maybe this is a good time to ask scouter.com about that, too!
Still learning! Thanks again for all of your responses!
Mimi