general info on nannies, cost, how to find

New user of this group. 10 weeks pregnant with twins. Will have to go back to work and money will be tough for two in daycare. I would prefer a nanny. Wanted to see what group has for suggestions, etc. Have no idea how much cost to expect, typical requirements,etc. Really anyone who has used a nanny would be so helpful. How do you find one in your area that you can afford?