alright dude,
you need a timer
4 more of each of them CFL's (thats a total of 10 CFL and around 420watts (haha 420 watts dam!!))
some Y conectors and some sort of method to plug them all in.
fertilizer, get some sort of all purpose salt based fert that has a NPK of all roughfly the same (i.e 3-3-3, 4-4-4, 5-5-5...get the picture?) once you learn more you can experiment more with different nutrients and shit
dont bother PHing water going into soil its a waste of time, but do make sure your soil is PH 6.5-6.8 something like that.
if the plant is flowering timer needs to be set on 18/6 so it wont go back to veg
you will need some fans to exaust hot air
mist the hell out of your plants under them CFL they wont burn, if they do ill stick my dick in a blender.
with a budget of 400 bucks you can get a 400w HID light that fires both MH and HPS and a small grow tent, all the ducting and fans you need + a order of some decent genetics from attitude. thats up to you, or you can try and ghetto rig that cabinet. whichever suites your needs best, some people dont have room for a tent and its just not a option.
you can also get a 150 or 250 HID light that fires MGH and HPS bulbs but with HID lighting heat becomes a serious issue and you have to properly ventilate.
check it out
Tent 70 bucks free shipping
Light 170 bucks free shipping, dimable ballast and both HPS and MH bulbs
Fan 25 bucks free shipping (works in my tent)
Ducting 15 bucks free shipping
Seeds
were up to around 285 bucks without seeds, 4/20 promo at atttitude is going on in 2 days grab a pack of beans and get siome freebies for like 60 bucks
thats 345/400 bucks leaves you enough money to go get a couple of 3 gal nursery pots for 2 bucks each, a couple bags of decent potting mix and some form of nutrients, you should be gtg