After much debating, I've taken the plunge and ordered a 21.5" 2.7GHz i5 iMac. I will be upgrading the ram but I would like some advice regarding the hard drive. I would like to use an SSD as a boot drive because of the huge increase in speed. However, I don't really want to go pulling my shiny new iMac apart to accomplish this. So...what's the best Hard Drive enclosure to get to use with an SSD that will give me the best performance?