Well everyone has their own preference of what makes a good gaming equipment but I would say that the Logitech Wireless G602 Gaming Mouse, Corsair Gaming K55 RGB Keyboard, and Razer Kraken Pro Headset are nice, though they are quite expensive. I stick mostly to cheap Logitech equipment to play my games though, especially since I'm not a competitive player.
err quality and durability of razer products is not that bad yet not too good for it's current market price.. for me go for the brands Corsair/SteelSeries best brands for gaming peripherals in the market so far...
Corsair isn't a bad choice. I am indifferent between Corsair and Razer as both brands are just as great and do what they're supposed to do, but I do like Corsair keyboards for the looks.