Hmm, didn't know they had those things from Asus. Looks interesting enough. Does Dolby Headphone make that much of a difference anyway? From what I got out of this thread it does a great job, but will a small USB device like that give me the same results? Or is the technology ALWAYS the same and does it fully depend on the compatibility with the headset? Anyway, I'll probably just order the Samson headphones then. (Now if the Amazon seller that actually sends them to the Netherlands will get some back in stock). Any recommendations with attaching my microphone? It's just one of those Creative boom microphones, similar to the Turtle Beach ones.
It's the same sort of processing, so unless something's really wrong with the fidelity of the source (Xonar U3 in this case), there shouldn't be a dramatic difference. It's just that some headphones bring out the positional cues those binaural surround filters offer better than others, and that's what this guide is about-picking out the right headphones to get that "aural wallhack" experience.
As for attaching your microphone, there's always the cheap route with a bit of tape, Velcro, or something along those lines.