A mere 10 weeks ago, Kari Ruder (Naturewise and The Green Marketplace in Cocoa) brought me four heirloom cherry tomato plants in little cups, along with some really smelly fertilizer. I put two plants in each of the two grow boxes I keep in my courtyard, and voila - thanks to Mother Nature and Kari's strong stock (and that fertilizer), I have eight foot tall plants with scads of tomatoes.
I love the grow box approach - once you get it set up, it's just a matter of keeping the reservoir full of water. The screen behind the plants is to cut down the reflection from the building - one year, my plants got fried.
Just look at these little beauties!