BOSE = Buy Other Sound Equipment, Better Sound through marketing :P

LSK have unbeatable value over the big names, and they use actual high quality drivers like vifa, and peerless.

http://www.theloudspeakerkit.com/

They do sell their kits pre assembled, under the name 'Wapplington'. Office in leederville you can check it out - You wont be getting better value for money with big name brands which are almost always a total rip off for inferior quality.

With regards to amplification....

Wattage is not a factor in sound quality, its current and damping factor. In fact without a known sensitivity its totally irrelevant. The problem with 7 channel amps is that you have all 7 speakers sharing the same current and that results in high distortion and floppy speaker control.

I could show you a 12watt amp that would destroy any 100+w x 7 style of receiver in every way and cost less to buy 4 of them :P In the last 3 years amplifier technology has come a very very long way, with nuforce, ice, and tripath technologies.