My parents and I have spent more money on Home Audio then, I have in Car Audio, which is saying a lot....
Yamaha makes awesome recievers, and this video processing with the unit is amazing at worst. They have things for every comsumer, whether you want to spend like 250 or 3000, they make some quality stuff.
As for speakers, you have so many options, I have had Bose 901s which were crazy loud! Each speaker was made up of 11, 4 1/2 inch drivers, that didn't carry an RMS rating, just a note that said "can be powered by any conventional amp" or something like that.
B&W are sweet speakers too. Kevlar and dimpled cones make for unreal sound reproduction, but it comes with a price.
Mission speakers are quite nice if you are looking for some lower end speakers.
Lemme know what you are looking for in a system, aka budget and so forth and my dad and I might be able to suggest you something.