Alright, I am in the beginning stages of setting up a single zone, 8 speaker, in house audio project for my wife's parents.

The plan is to have 2 or 4 outdoor speakers and 4 indoor speakers (total 6 or 8 speakers). They will all be running off the same source from a receiver of some sort. Neither volume nor fidelity are of paramount importance. My wife's parents just want sound to fill the space.

Also, I don't really care about different zones. If the outside and the inside both have to play the same source, that is fine. Bonus points for dual zone, but PRICE is of highest concern here.

My question:

How do I run 3 (or 4) sets of stereo speakers without running into a 1 ohm load per speaker (in parallel) or a 64 ohm load and (in series) (and no volume)?

I am looking into 8 channel amps, but they get expensive quite fast, and all appear to be audiophile material.

Any ideas how to achieve this? Any moderately priced amplifier units out there that will fit the bill?

Thanks.