Yeah flouro's are the way to go with a closet grow, you could make a hps work in the closet, but you'll need better ventilation to cope with the higher temps hps's give out and more space (you can't put them as close to your plants because of the heat) either get about 4 x 40 watters like brook uses, or you can get compact flouro's (cfl's, the energy saver type of bulb) or if you can get hold of them where you are you cold get just one 200 watt envirolite.

As for pot size, that really depends how big your gonna grow them. I'll assume that you want them to finish at around 2-2 1/2 feet, then a 2 gallon pot is the minimun you should use. Good luck!