Hello everyone, I have a MacBook Pro 15.4-inch that utilizes the "Santa Rosa" chipset, from Late 2007. I would like to upgrade the RAM in my Mac however I haven't upgraded a Mac before (this is my first Mac). I have heard good things about Crucial and OWC and I am able to order OWC at a pretty decent price with shipping (to Canada). Which one should I go with? Anyone here familiar with OWC and their RAM upgrade kits? I am looking to upgrade to 4 GB. Thanks.