Over at the MTV Multiplayer blog, Stephen Totilo has been making me cranky over the last few weeks, posting about Rock Band 2 demos and getting an early copy of Dead Space. So when he IM'd this morning, casually asking about how a person would go about buying a Street Fighter IV arcade machine in the US, I was determined to be unhelpful and sullen. Had I been smarter, I would have traded him the info for an early copy of Rock Band 2 (or at least the crazy ION drum kit), but my innate professionalism kicked in at the last moment, forcing me to divulge secrets. Thinking about picking up the full-blown SFIV experience before the 360, PS3 or PC versions hit home? Stephen has a few ProTips for those of you with more money than time.