Yeah, I agree. I just picked up a 400W self-ballast system for $200. Spankin new. 55K lumens. Just be careful with height. I read that HPS lights in the early stages of vegge will cause your plants to grow unusually tall and lanky, so you might want to have some CFL'S ready at the early stages. I got six 250 W CFL's on them now, just in case that is true. Maybe some more experienced growers can shed some light on this. Haha, pun.
Good luck, and keep posting
stikee