My husband and I are both training for a 1/2 marathon coming up in 2 weeks.
We've been doing our training at night and alternating which one watches the kids while the other one goes for a run. Likewise, we take turns on the weekends with our long runs.
We have a friend we train with who's in the same situation - we couldn't get the kids to cooperate long enough for a good run in strollers (we both have recently-turned 2 year olds, and I have a 3.5 year old).
I like running in the evening while my husband gives them a bath and gets them prepared for going to bed. I don't know if that's an option for your husbands to help, but it's certainly made life a lot easier on us. We're all also working parents, so our options are only after business hours.