big mean bunny

Hi all signed up as picked up an xbox and want to play arcade games on it, my issue is I am new to this and have my head up my arse when it comes to it! Could someone point me towards a "so your new and you have your head up your arse" sort of guide?! I literally don't know where to start. Do I need to soft mod the console first and then add coin ops? or is it different to that, also since I started to look into this it seems a newer version of coin ops has come out. Would anyone be kind enough to give me some hand holding? Also I currently only have a mac (with 10. although am sure if needed I could stick a windows partition back on it if its easier to sort out with windows.