I'm looking to add an ssd to my MBP. I know it will max out at 3G speed since it's a mid 2009 model. But the 6G 120GB is only $5 more on sale this weekend. I'm thinking $5 more for an extra 5gb and having the 6G speed for the future. I'm not that up on the latest SSD info so question is: is this a good idea? Is the Electra going to be just as fast in 3G as the Extreme is in 3G? These are the 2 I'm looking at. http://eshop.macsales.com/item/Other World Computing/SSDEX6G120/ http://eshop.macsales.com/item/Other World Computing/DDMBSSD115/ Thanks!