shit ill help you, ditch the cooking bulb....whatever that is and get some cfl's if your broke or a small hps if you have maybe a hundred or 2 to spend, so with say a 250 hps on your first grow 3 oz is within reason, but the experience you gain on the first grow is worth millions, so as far a nutes go mg will work......but its not the cheapest or the best, any garden store carries fish emulsion and usually boxes of guano and bone meal and shit like that, so when you prep your soil you will also want to add dolomite lime as a ph buffer if your soil is not buffered allready, that way you can go all the way through veg on just plain water, high times recently did an article on making super soil that was great, in some of the jorge cervantes vids he shows how to mix up a propper batch to and those are on youtube, but yeah, once you have the basics of growing down a half gram per watt of hps light is what you should get at least, if i were you i would try my best to get a small hps as they are the best light, but cfl's are decent also