I need a relatively cheap but decent true 5.1 surround sound system for my smallish living room. I scored some money for Christmas and birthday and I think a 5.1 system is what I want to spend it on. I would like a couple of optical ins (for PVR and Xbox - and one day a multimedia mac mini ), Dolby DTS, remote etc Wireless rear speakers would be a bonus. I think the Logitech Z-5450 is about right specs and price wise. But I really want some personal opinions on it and similiar speced/priced systems if I can. Does anyone have the Z-5450 and have an opinion on it? Does anyone have anything comporable they can recommend? Klipsch? Creative Megaworks THX550 / Gigaworks S750? A DVD 5.1 setup but still affordable surround sound system?