You can get "interrupter" brake levers, a second set of levers you can put where you want. My road bike has traditional drop bars, and brake levers on the front, but I spend most of my time on the uppers. So I got a second set of brake levers up there. It's like the old dual-lever brakes from the 60s and 70s, but they are separate and could be mounted anywhere. They're called interrupters because they interrupt the brake line or something like that.

You've already purchased the touring bars which look like a good choice. So FWIW to you or others, on my MTB-based commuter I sport wide bars with a slight rise. To achieve more hand positions I mounted bar ends, but INBOARD. This gives me a jockey-like position I have come to enjoy. I then added aero-bars that give me two more positions: stretched out and upright, using the elbow rests as hand-holds. See my video here: http://m.youtube.com/watch?v=12EyzRuPlZA