Looking for a replacement for the Kenwood HTB-205. I need more power. Price range is about $300 to $400. I've been looking at two systems recently. The Panasonic SC-HT900 700 watt and the Logitech Z-680. What are your opinions on using a PC home theater system for watching DVDs with a DVD player, not a computer. Also, what does "RMS" mean? I've read the system has about 500 watts RMS and a total peak power of 1000 watts. What does this mean? Basically, I'm looking for, preferably, a 5.1 surround HTIB with as much power as possible for the money. Also, I prefer having more power for the subwoofer and the center speaker than the other speakers, and a receiver that supports Dolby Digital, DTS, and Pro Logic II. What are your suggestions?