Well I just learned that my new lights and gear arrived at the house today, can't wait to go home and unwrap! I ended up going with the 600w hps with a nice bulb. Picked up two compact t5s for vegging, and an inline 450ish cfm fan and matching filter. Needed to rethink the vent setup a little though, I scoped out that old dead chimney and it is packed with crud! So, I think I am going to vent from one side of my basement to the other....through the charcoal filter. Hope it doesn't smell to wonderfully delicious everywhere in the house!