I need to replace my battery and trackpad on my MacBook Pro and between the $219 Apple cost and my previous DIYing with RAM and a SSD, I want to do this also. I just have no idea which of the 500 options I can use is best. Ive looked at Amazon, Newegg, and ebay and the prices vary a bit, but I have no idea what is ok to use and what isnt. Presumably there are alternative manufacturers of Mac parts for both batteries and trackpads. The reviews on Amazon for both are good, so I may just go with that since I can be sure of the vetted quality, but maybe some people here have better ideas.