a simple & cheap HTIB won't do you justice.

As a long time lurker, I hope you've read our admonitions for investing enough for long term satisfaction. Doesn't have to be extravagant by any means. Yes, make that a priority during the new home rush when some free cash is flowing. The cash flowing definitely does come to a screaching halt.

Well, perhaps you want to wait later this year for a competent receiver with HDMI 1.3 capabilities. The number of zones capable within a receiver is directly proportional to price. Actually, you don't need a top of the line, but perhaps a modest supplementary amp due to the large number (six) of speaker pairs.

Without getting overly involved some local help should get you set up with as many zones as you want. Probably need need some additional switching. My receiver zones (an overkill one) are for three independent things at once, though I presume you will mostly want just to repeat stereo throughout several rooms.

Let us know how you will proceed.