Sweet setup man, you could really do some damage with all that, esp that flower room with 1000w you mentioned! I'm a noob too lol this is also only my 3rd grow as well. You could always join the other side and get your feet wet with some hydro
I'd run some 3 gal dwc buckets in that veg cab then move em into 5 gal buckets in the flower room, hook up some scrog nets and create a huge field of buds!
Yeah she ate like hell this week, a lot more than I planned but still had adequate nutes to feed her. She grew about an inch a day so figures she ate like hell. I moved the light up an inch so hopefully that calms it down too.