Is it possible to repair a rusted metal roof?

I'm posed with the option of replacing our storage unit or trying to repair/replace the roof, which is rusted and leaking.

I am finding a new shed can be quite costly and labor-intensive.

I am not that handy and am wondering what type of work would be required to fix the rust holes on the current roof (there are a lot of little ones).

View this post on my blog: http://madeinhome.info/is-it-possible-to-repair-a-rusted-metal-roof