If you make Supersoil just how it's laid out in the recipe, it's fool proof. Most of the amendments called for in Subs SuperSoil are available on Amazon.
No need to reinvent the wheel, ya know?
If you don't mind a cooltube... This is what I run. $164 from Amazon
http://www.amazon.com/Apollo-Electronic-Dimmable-Reflector-Hydroponic/dp/B00521B894/ref=sr_1_1?ie=UTF8&qid=1358957855&sr=8-1&keywords=600w+cool+tube
Comes with both MH and HPS bulbs
Peace and Karma to you!
Namaste!