Razer Megalodon VS Creative Sound blaster WoW headset?

Hey, i am getting a new PC on wednesday, and i will also be fetching a new headset soon enough. The new PC doesnt have a special soundcard, just the motherboard thing. So, i see 2 headsets that looks awsome, one being Razer Megalodon, witch has its own 7.1 soundcard, or the Creative Sound Blaster WoW headset, wich seems awsome but im not sure if it will give me surround without a soundcard. any one know whats the best for someone without a soundcard, just the integrated motherboard thing?