Well, I didn't have a chance to look at anything this weekend, so I'm doing a little more research. The impression I get is that the options I listed fall in the following order:
JBLs somewhere in the bottom half. All have gotten good reviews, although there's not much on the JBLs. It's amazing what you can get in a bookshelf speakers nowadays for a few hundred bucks, but I'm still struggling between bookshelves or towers; I worry about the integration with the sub with bookshelves, especially the small ones. I'm thinking of foregoing subs and getting towers instead, but I'm probably kidding myself that they would be sufficient (at least the ones I'm looking at except for the Interludes). I was planning on getting matching subs, but I worry that some are substandard and others are expensive, so I might be better off getting that separately. I didn't realize HSU has some inexpensive ones; I need to do some research over in the sub forum.