Can't train for 2-3 weeks

I have been having problems with pinched nerves/general back pain for the past 10 months. I have been seeing a chiropractor to be able to lift without pain. I went to the doctor yesterday and he put me on Soma and said "no weight training for 2-3 weeks"...I know from the way my back is feeling already that, I should be able to get back into training 100% after the short layoff. I'm allowed to swim and do minimal recumbant bike work as long as there is no back pain. I was wondering if anyone has any workouts that are fairly easy on the back.