I would take a look at some Axiom Audio bookshelf speakers:
http://www.axiomaudio.com/m22ti_main.html
Very small footprint, reviewed very well. I use some of their smaller speakers for rear surrounds.
If you want on-wall speakers B&W has some monitors that sit on the wall and sound pretty good.
I am NOT a fan of the BOSE systems. Ever heard the jingle, "Can't hear the highs, can't hear the lows, must be BOSE"?
Have heard their wave thing in the BOSE store. Listened for grins. Was not impressed in the slightest. If you want ambient sound and could care less about imaging I think the BOSE would actually work just fine. You don't need to spend $10k if all you want is background noise.
However if you want to watch an occasional movie or actually sit down and listen to some music, I would pass on the Bose system.
Marantz sells some stylish all-in-one systems that are reasonably priced if you know where to go....
http://www.accessories4less.com/cgi-bin/item/MARER2500
The real question is what do you ultimately want to DO with the sound? You mention that you don't want a big system "right now", which to me implies that you may want something decent in you near or close-to-near future. If that is the case, I really don't think a Bose system is going to help you. You ideally want to spend your money once, and not over and over again as you expand. Get something that you can see yourself using in the future. Get a decent set of bookshelves (like the Axioms) and then move them to your rear channels when you go surrond sound. Or get some nice B&W 6-serries bookshelves (602s3 sound great) and move them to the rear when you upgrade your front speakers. Since it is in the same line as other, much larger B&W speakers, their sound and timbre are already matched so you have a clear upgrade path.
Hope this makes sense.