Waaaait... Why do you have two surround processors there?
If you're gaming on PC, you just need Creative Sound Blaster Z (or ZxR) and AKG Q701, the DSS wouldn't do anything for you. If you're gaming on console, you just need DSS and headphone. Are you actually talking about two setups here?
well, from what I've read, some people don't like the surround sound processing of the SB A's so they bypass it's surround sound processor (SBX) and add the Dolby surround processor. I haven't bought the DSS yet, but they're there as an option in case I don't like the surround from the card