All you should need are 2 screwdrivers (one of each type) and the receptacle itself which you can get from Home Depot, Lowes, or even Walmart. You can go with GFCI or normal. If you aren't absolutely positive you know which breaker feeds your outlet this is my recommendation on how to check you have the correct one. Plug in a lamp with the light on into the working outlet. Open the breaker and make sure the light turns off. Close the breaker and make sure the light turns back on. Open the breaker again and then you are ready to begin work. Doing the work is easy. Remove the cover plate. The outlet should be held in place by 2 screws, so remove those. At that point you should be able to pull it out a few inches so you can remove the wiring. Remember which wires went where (take a picture if you need to) and match them to the new receptacle. Connect the wires, secure it with the 2 screws, install the cover plate, and you are done.