Hey thanks guys. I asked about this issue in another thread before I decided to start a grow journal and someone else suggested re-routing the filter/ducting too.

As for the ballast, I was hoping to keep this semi-stealth but with the giant beacon of light coming from underneath the door I think that putting the ballast outside will be the least of my worries.

So I will do both, check temps, snap pics, and post.

Thanks!