Can anyone give their opinion on which is the best controller option for PC users? I've seen several people say they use the Xbox controller, but I don't want to give up the mouse so I was thinking about getting something like the Razer Orbweaver or Tartarus. Maybe even a used Nostromos. Does anyone think those options are good, or will the Xbox controller still be a superior choice? Also, I'm thinking about getting this ergonomic mouse for gaming: Will this mouse make things hard for me or is it not that big of a deal?