Most of the track day riders around here do either Held for gloves (that is what I personally own, and love them!) or Knox. I recommend getting something with Kangaroo leather on the palm - it's much lighter and thinner than cow hide, but every bit as strong.
I also highly recommend a chest and back protector. On my second track day there was a younger guy who highsided and landed chest-flat on his foot peg, puncturing his lung. Relative to the cost of all the other stuff, they are pretty cheap.
