Make sure when you transplant that you bring none of the old soil into the house with the plant. All kinds of living things in the soil you don't want in your house.

You may want to bring them in now, before they are in full flower. I have read plants are far more vulnerable to stress in flower than in veg.

They should be fine under a 1,000 watt hps, in terms of lumens per square foot it is about equal with the sun, only no clouds ; )

peace