Definitely stick with a pure indica since you only have a 6ft fence. Even if you only grow 1 plant in a 15gal pot in the ground, you can still train it and get 8+ ounces easy.
Im glad I left the days of buying by the gram or 8th... fuckin pain in the ass needing a connect every few days. Throw an O in a jar and you're set for 2 weeks.
I'd invent a real "007" style jetpack... like a good one. Not like this one though it is very cool:
http://www.youtube.com/watch?v=EP3JIrJMrrY&feature=fvst