Satellite speakers help!!!

sorry, edited this response - it was for a different thread

When you say the speakers are going to be mounted on the wall behind your sofa, is your sofa against the wall you plan to mounting your speakers on? In order to get the most out of 7.1, you need, at the very least, 3 ft. of space behind your listening position - 6 or more is better. If your sofa is against the wall, save your money, and stick with 5.1

As for rear surround speakers, they really don't have to match the rest of your speakers. You could also check audiogon.com, you might find some there.

Keep in mind that there are very few true 7.1 mixed movies out there.

If you are trying to 'future proof' your HT setup in the hopes that 7.1 movies become the standard, then you should consider that for a good 7.1 setup you need some actual 'depth' behind your listening positioning.

If your couch is right up against the back wall, then you have no 'depth' behind the couch to properly mount the rear surrounds for good 7.1.

I think most folks would agree that your money would be better spent on a properly configured and budgeted 5.1 than a poorly cobbled 7.1 configuration.