Bit of a lo-fi query, I'm afraid. I have a bog-standard set of speakers on my PC (not HTPC) connected to onboard sound. I would like to get something a bit better to improve the sound from a TV card. I notice that a lot of the PC speakers available now are more than just the usual stereo. There's loads of 2:1, 5:1 etc. The question is (and it may seem a bit dumb, but it's not obvious to me), what do I need to make use of these? Will they plug into the single PC audio socket or will I need a new soundcard with extra connections? Do the 3-speaker sets just daisy-chain together or connect to the PC separately?