I used to sell and demonstrate woks for Taylor & Ng, a once, significant manufacturer of woks and
wok tools.
I'd guess you need a 14", rolled steel wok with a lid. Depending on the kind of stove you have (flat top or electric stoves are issues) you get either a flat bottomed work with one loop handle and a wooden covered long handle or a round bottomed version with a wok ring.
For tools, get a stainless steel wooden handled spoon/ladle and spatula. I also got a bamboo handled wire basket/spider which comes in handy. If you're going to use the wok to deep fry, a draining rack can be handy (although, I never use mine...too big and too small, all at the same time.)
Under no circumstances let anyone sell you an electric, non-stick or copper wok. They're NOT what you want. (electric doesn't get hot enough, non-stick can't handle the level of heat you'll use and copper costs an arm and a leg then only looks good if you never use it.)
Also, if you're wondering about how to season it, let me know, I've done dozens of the suckers.
http://www.taylorandng.com/index.php/today-s-kitchen/woks-classic/classic-kitchen-wok-set.html