Was looking to add 1GB RAM to the 512MB that came in my new stock 15" PB. First looked at Apple: $500!? Next looked at Crucial: $211, not bad 1-800-4MEMORY: $112, amazing price... OWC: $130 generic, $175 for supposedly same Samsung memory Apple uses Finally, I looked up the same model number Samsung RAM that OWC sells for $175 and bought it for $150 from Newegg (here). Lifetime manufacturer's warranty. Is this really the same exact memory Apple sells for $500? Did I make the right decision? Really looking forward to having that extra RAM.