I’ve been waiting to upgrade the memory in my MacBook Pro, but hadn’t–until this week. Other World Computing has this deal going on right now where you can get the 4GB upgrade for $92.50. If you send in your old memory chips after the upgrade, you can take up to an additional $20 off. After it’s all said and done, this will cost me $72.50 for a 4GB upgrade. That’s a pretty good deal.