nned some advice please>?

would this be good to buy ?> eBay: 400 watt HPS Grow Light BALLAST KIT MH 175 250 600 1000 (item 180076251176 end time Feb-04-07 19:00:00 PST)

if not can you give me a link to something better to grow 2 or 3 plants .. . but i dont want to spend over a 100

that looks nice to me, and they have a solid rep too, I bought mine from him.
You can check out his site at htgsupply.com