1. Any suggestions on a good strain for indoor growing? INDICA strains

It can't be too tall. I read that northern lights is good (5 feet or so max) but that might be too tall. Anyone know of a strain that will flower well but remain under three feet? Just dont veg for a long time if you switch ur lighting from 18/6 or 24(veg)hours of light to 12/12(flower)when they are about 1 foot tall you should be fine, they should only grow to be about 2ft tall, they should double from VEG to the end of flower.
Or is there anyway I can stop it from growing taller with no negative effects to the plant?
Just TOP or LST your plants and you should be fine TOPing is when you cut a piece of the top main stem and it usually shoots out 2 more main colas, this makes the plant also remain short and bushy. LSTing is when you tie down ur plants with string or wire to keep it short.2.

Whats the best light to use when heat is a very major issue?
HIDs r best but do cause lots of heat but you can use lots of fans to reduce it
Flourescent? their good and u will need less fans
Also, when there isn't much heat present, is air circulation still as important?Yes air circulation is important, its important for you plants to have nice fresh air