Also what is your total budget?
You will get recommendations that go every direction, but mostly you want to get some ideas based on budgetary numbers, keeping in mind it is rather easy to go over that number after you including speaker wire and cabling.
But, if you take things slow - don't jump to quickly, and make solid decisions, you will be good to go. Figure out the complete system, then buy it at once if you can. But, definitely, get the Bose stuff together and return it if you can. You will be amazed at how much better stuff can sound.
Look around at some solid manufacturers as well for speakers, Axiom, Energy, Paradigm, Def-Tech, Aperion, etc. There are tons of excellent speaker manufacturers out there.
Bottom line with speakers tends to be you get what you pay for unless the company is specifically ripping you off. The above listed speaker companies don't do that.