OCZ PC2-6400 Gold 2x512MB
 

Overall, I was impressed with what OCZ has brought to the table with the PC2-6400 Gold Series. With a Lifetime Warranty for modules run up to 2.2V ±5%, the end user gets a pretty nice cushion to play with without fearing what might happen should the modules fail.

Direct Link: http://www.mbreview.com/ocz6400.php