I pretty much don't Ebay anymore and sell my wares on Craiglist. Just this past weekend I was able to sell an old Ipad and some sports tickets within a day of posting. I always stipulate in my posts these are cash inperson transactions. Anyone asking me to ship is generally a scam and won't ever consider. If you research and asking a fair asking price it will sell.
Try amazon.com for the gaming equip & games.
Old PC's have little value, I find if you gut them and sell the parts (again on amazon) you can yield more profit.