Yo whats up man, don't bother getting a kit most of the time when you add it up its not cheaper or not by much. I would suggest using htgsupply.com , all the products are reasonably priced and the only i couldnt find was a decent tent or insulated fan ducting. bghydro.com has the growlab gl145 and insulated hose i want. My plan was to get digital 600w hps/mh with the 6" cool tube, growbright 6" inline fan/carbon filter combo, fox farm trio pack, hygrometer/temp, 5 gallon pots, don't bug me pest control, ph test up/down kit from htgsupply.com. Like i said i'm getting the tent and ducting as well as clamps from bghydro.com All this is going to cost about $1200 w/shipping. You don't really need co2 right of the bat but i'm sure it helps. I have no experience with co2 i open my windows for half hour 4 times a day. If somebody has anything to add i'de like to hear it, but this is all you really need to get started beside seeds and soil as far as i'm concerned. Happy growing!