As someone new to the home theater world, I've been planning my system for a few months now and have decided that I would like to go with active speakers for my sound. (been looking hard at Genelec) My question is, if I were to use a sound card to output to my speakers directly (i.e. bypass the need for a separte reciever, using my HTPC only) which one would you recommend? I will need one that does Dolby/DTS decoding and I would like to go with a 7.1 card. Also, I'm not really clear on if going this route offers a replacement for pre-amping?...would I be able to control the master volume of the system via this avenue?