You've already dumped a bunch of money on lights.... You can go simple and cheap for the rest. If you can get some bag seed free drop them in some quality soil and wait for them to sprout (not under your HID lights) any room that gets mild day light will do... once you have sprouts you can intro them to your lights... keep them at least 3 or 4 feet away from the lights until they get a couple sets of fan leaves. I say bag seed cause they are cheap and they allow you to get some experience before buying and growing the good stuff. experiment and have fun with it.... gather information there's a bunch out there...