I recently purchased my very first Mac product, a Macbook Pro Duo Core in perfect condition. It came with just 2gigs of RAM, so I ordered 6gigs of RAM from iFixit.
It was painless. I had no problem installing the RAM and the machine now runs much better.
iFixit rocks. Plain and simple. The ordering process was smooth, the product shipped quickly and arrived perfectly packaged. Keep up the good work guy & gals! Looks like I'll be needing a battery soon and guess who I will buy it from!