SO now I'm interested in a new sound card so I can buy a newer AV Receiver! But I'm very unsure weather I should bother or not. At the moment I have an Auzentech Prelude X-fi Sound card and A Yamaha Natural Sound AV Receiver RX-V363 along with the Tannoy Mercury hi-fi Bookshelf 5.1 setup but with a 10" Vibe Subwoofer. So one reason I want to upgrade is for Dolby TrueHD and DTS-HD master and LPCM audio for the computer and for Blu-ray movies using the PS3. What would your thoughts be on this? Should I even bother??