Logitechs are very good.
i have a Creative set, and these are probably very very poor in comparison looking at the specs both companies tend to use
Logitech is definietly where I would get my next set, though I have never heard of that model before.
Its obviously cheaper than the Z5500's, though is still 5.1. Must be the previous version?
They are probably about the same in terms of quality and sound though, though I don't think the wattage is as high as with the Z set, though lol, if your already almost blows your house down, why do you need it
I love bass, and just know they'd be amazing at that!
I'd get sound proofing mate. Thats where the most of your money would need to go, hehe.