Hy guys. I'm going to buy my first mac. It's going to be an i7 27" iMac with 16GB RAM and I'm going to replace the standard hdd with a Vertex 3 SSD. I like the idea of a almost silent system. As I'm a photographer I do have a lot of data which I have on a external disk. I already own an FW800 enclosure and 2x WD Caviar Green WD20EARS HDDs. My plan is to connect one 2TB hdd via FW800 to use it as data disk. My first question* Is it possible to work constantly on this disk via FW800 in a photographic workflow where I use lightroom and photoshop ? Later this year, if some thunderbolt enclosures become available, I guess I'm going to use a TB enclosure as my main drive and the FW800 as Backup enclosure. And my second question* Should I change the WD Caviar Green for a faster 7200rpm disk or doesn't it matter at all via the FW800 connection?! I guess for TB it makes sense then?