Just an update here...I found that I can have the multiple drop downs, but for some reason it's limiting the number of items I can have in the list. The reason it wasn't working with the dynamic list pulled from a recordset was because there were too many items.
This doesn't make sense, however. Why would it limit that?
So I switched over to a hard-coded select list, as there is no price increase and it's the same for all pages - no problem. By adding one item at a time, I've determined that in the first list I can have all 60 items that I need (A-Z, Alpha-Omega, 0-9), the second one I'm allowed 43, and the third I can only put 30. Weird, right?