Do not be intimidated by the process. As the previous two posters stated, OCW and ifixit can literally walk you through the entire process with video and pictures. OCW usually has an option to include a tool kit with your purchase. Go to a hardware store and purchase a good 00 phillips head screwdriver for removing the screws holding the bottom case on. Place the MBP upside down on a towel (powered down and unplugged). Use the 00 phillips head to remove the ten bottom screws. Take your time! Made sure the screwdriver is seated properly, press down firmly and slowly remove the screws. At the factory they are inserted with some type of loc-tite. Place the screws on the towel next to the hole you removed them from so you know which goes where when you put them back. Follow the instructions and use the tools provided by OWC. Easy to do. OWC even has a video instructing you how to format/transfer date to your new drive depending on if you have an OS disc, OS internet recovery or a USB HDD enclosure. There are tons of threads already posted on here detailing the process also.