Last year I bought a new headset - the Arctis Pro Wireless and it's been one of the best purchases in a long time - especially since I end up being on a lot of calls and I cannot sit still to save my life.
I'm going to say my Plantronics RIG 800HD, they are light and sound reasonable, and they keep a charge forever.<p>Other than that, my Logitech G3 on which I've replaced the rightclick switch once and leftclick twice.<p>If I can only pick 3, then my WASD keyboard with red cherries, very happy with this and I type a lot.