Director on Contract & Tax

Hi,

I'm a director of a limited company that's not currently turning over that much. I take a very small salary monthly just to keep things ticking over.

In order to bring in some more cash I was considering contracting with a larger company. What's the most tax efficient way of extracting payment from this company if either:
a) I just want to pay myself the full contracting fee?
b) I want to bring some of that cash into the business to help pay for employee's salaries?

Thanks!