My insulin pump is, hands down, the best way for me to manage my diabetes without sacrificing my active lifestyle.
I work 2 jobs, both of which are at least somewhat active, cycle a lot (including commuting to work during the spring-fall months), ski, and hike, among other things.
Pumping takes a lot of work, and a lot of BG testing, especially when you're first getting your dosages figured out. It's not cheap either, at least here in the U.S. But, if you're committed to it, it can work very well. Like all treatment methods, some folks love it and some don't. I count myself squarely amongst those who love it and have found it life-changing.