We bought all of the parts for about $15-$20 and saved ourselves about $100 because we didn't have to call an electrician for a very small job.
These kinds of little tasks can easily be done if you just watch a couple of videos online first.
One tool that is necessary for changing light switches is a voltage tester. You need to tell which switch is the live wire and which one is not.
Right now, you can get a voltage tester for $3.99 from meritline
Start your purchase at from Ebates and get 1.0% cashback as well. You will still get your normal cashback from your credit card as well.
Don't have ebates? Sign up here for free. You also get a $10 gift card to Target, Barnes and Noble, Home Depot or Magazines.com after your first $25 purchase