They are at Aldi now I think. I know someone who got one around XMAS on Ebay for about $180 shipped. The sub plugs into the L and R outputs on the back of the receiver/dvd unit. It has a built in high pass filter, so the L and R speakers plug into the sub and they get the higher frequency audio while the sub produces the low. The rear speakers get all frequencies of sound, so they are very distorted during explosions (games, movies, exc) because they try to produce bass, hinting there is no low-pass filter for rear speakers or there is bleeding from other channels (because in surround sound, bass frequencies usually are not encoded to rear channels, only front and sub.)
The sound is decent, the receiver feels solid, and its worth the 130 bucks Aldi is asking. It has no pro-logic (I or II) and no digital EX, so basically the decoders a late-90's implementation. I don't think it has any fiber input or digital coax input.
The speakers are rated at 40w 8ohm each, sub 75w 8ohm. The RMS value of each speaker would be under 18w rms; under 30w rms for the sub. I also want to note it came with 26ga wire. Not a big deal, but consider that this wire is rated at 100w @ 120v/1.5A (Radioshack stranded-copper Grade A rating) and your at the ceiling of its capability.
If I were to buy it, I'd probably replace the wiring anyway because it only comes with 1 meter for front speakers and 3 meters for rear (10ft.)