Whether or not you have the right to work will depend very much on what sort of visa your husband is getting through work. You should be working with your husband's employer to see what sort of visa you will be entitled to, based on his visa situation.

You shouldn't need a work visa to do a course, even on a dependent's visa. But, if you apply for your visa separately from your husband, all bets are off.
Cheers,
Bev