InfoPath Dev

Is it somehow possible to create nested sets of checkbox lists based on information from an access db? For example, I am currently working with a short list of 12 service categories, each with 12-24 specific services. NONE of the selections are exclusive of any others - all could potentially be checked (though it would be ridiculous). I would ...

Thank you for your help! Turns out the problems I had were Access side :X I truly appreciate the advice though.

 Yes, that's exactly what I want to do. The question is HOW!  :)

 Sorry ahead of time if this seems really noob of me :D  I'm just starting with Infopath. I am trying to create a section of a form with two drop-down list boxes; the selection made in the first needs to determine which choices populate the second. I've poked around here, but I think part of my problem is that I am not very ...