I definitely wouldn't bother with a fancy keyboard or headset if you are just starting out on PC gaming, that's something you can pickup later once you've got more idea as to the sort of thing you are looking for and got some recommendations from fellow players (I realise that is kinda what you are asking for here - but it depends a bit on the sort of games that pique your interest). Also I would be more concerned about the quality of the headphones rather than necessarily thinking about headsets. I use Sennheiser cans not designed for PC use and then some desktop microphone I picked up years ago.
In terms of mice what you might like to do is buy one or two from a store that allows returns and just try them out, it's difficult to know until you do exactly what type/style of mouse suits you. Something like a Logitech MX518 is a good (and moderately priced) starting point.
In terms of mice what you might like to do is buy one or two from a store that allows returns and just try them out, it's difficult to know until you do exactly what type/style of mouse suits you. Something like a Logitech MX518 is a good (and moderately priced) starting point.



