Other World Computing (OWC), our trusted vendor (see recent reader feedback), has an incentive to order while time is still a plenty: free Delivery for orders totaling $29 and up!
Memory, iPad cases, DVD/Blu-Ray drives, storage, SSDs, you name it— through the end of next week shipping is on OWC within the 48 contiguous US States with any basket that's $29 or greater! OWC also has great rates for Hawaii, Alaska, and even International too..
16GB for MacBook Pro has dropped to $375. 12GB for $204. WOW!
Many other deals available via the OWC newsletter.
A hard disk has a real speed limit, try an OWC SSD and see your Mac fly.