There's nothing like planning to jump in at the deep end (with lead shoes on)!

LOL, just kidding. I see your point about there being a lot of room, but if you are not planning on selling any there is little point in growing that many plants (unless you get through an ounce or 2 a week). Plus that many plants for a novice will surely be a hell of a handful. I would consider a grow tent, as they are easy to setup and take down again after, plus when you move, you can take it with you. It will be so much easier to manage (both the number of plants and environmentally).

The other alternative is to throw your girlfriends stuff out of the closet and into the big room! Then you have a closet to grow in! :thumbsup: