i cant help u much as i dunno wat u can get in the US, but...

Lights givin off 2000 - 6000 lumens are brill

under and overwatering is easy, it wil be different for each strain and plant im affraid ull have to work that one out.

I forget what nutes, look round theres lots of detailed threads on that one..

If ur veging u want atleast 18 hours of light, 24 is betta.
12/12 for flowering
If u dont know what light u want get one wiv a blue or daylight spectrum for veg, If low on money get a daylight and use it for flower aswell.

Gd luck
Pezzo