since you are vegging, i'd suggest you go to lowes and spend 20$ on a double 48" flouro fixture and two GE daylight t12 40w tubes.

these are excellent for veg, don't produce heat so you can put them right on top of your plants (even touching) without fear of burning.

as for transplanting, i can't realy tell you wich soil, as i'm from a rural area and use local stuff.

if you aren't seeing any signs of nute burn, then up it to one ounce...

love, kp