There are very few bookshelves that will give any usable output anywhere near that low end that you want. If you want that....you're going to need a sub or a tower. And towers still wont get that low.....not at this price. Not anywhere near this price. Don't think that just because you have a sub it's going to be loud and annoy neighbors. You can always turn a sub down. You can't turn up what you can't reproduce. I really think, given what you listen to and what you're after, you'd be MUCH better off with a bookshelf/sub combo.
I told someone this in another thread that was looking for bookshelves, if I were looking for a bookshelf setup in this price range, one of the speakers I'd look at would be the ARX A2rx-c (a pair obviously). Jon might work a deal if you buy 2 so call it $400/pair. That leaves you with about $250ish for a sub and $50ish for stands. If you can squeeze another $50 and see if EMP will do the e1010i sub for $300 then that's another option. Check your local craigslist also as you might find a decent deal. The STF-2 from HSU, NXG 500, rw-12d, bic f12, etc. Some decent performers in this area that will yield a lot better results than a $500-600 pair of towers. A helluva lot better than the monitor's you're using
