I'm not an audioholic and never will be, but Axiom is a good setup. I'm working on putting that setup together, but with M22's as the fronts and QS8's in the rear. It's a work in process which will hopfully be complete at Christmas.
If you do want to try the Axioms... sign up for their newsletter, because they send special sale and coupon offers out in their email newletter. They last newsletter had a sale of $100 gift certificate with $500 purchase for the black Firday weekend. I'm pretty sure there will be another one around Christmas.
If you want to feel the house shake, make sure you get a good sub (SVS, HSU, etc), but a "good" sub will cost you. You can also put bass shakers on your chairs or sofa in your theatre with a decent subwoofer. That way you'll be garunteed to feel the bass even at lower volumes. You'll surprise unsuspecting friends and make your pad the perfered "theatre" to watch movies. Just a thought.
Best way to chose speakers is the listen to them. Search some speakers in your price range, read reviews, and then go listen to your top three choices. You'll be much happier then taking someone's word.