Hi everyone, I just did a fairly simple test to see if there was a speed increase after installing Snow Leopard. I have a MacPro 2.66 (2006) with 6GB of ram and a RAID0 that I used for comparison to make the test a bit more interesting. I made a simple 5 layer file with a photoshop graphic and some SD footage with some overlay affects. It was enough to cause a render on the timeline. I took the the same file and brought it over to my Macbook Pro 2.53 (unibody). I made sure it was running on the 9600 GT video card. I set the scratch disk on the Macbook Pro to the firewire 400 enclosure that also had the video files. On the Mac Pro, everything was on the RAID0, except the project file that I kept on the startup drives of both computers. I ran the test on my MacPro by selecting render-all and then hitting a stop watch. On the Macbook Pro, I ran the exact same file and timed it the same way. On the Macbook Pro, I ran the first test with OS 10.5.8. Then I installed Snow Leopard right over the top of 10.5.8 (because I didn't want to hassle with reinstalling software). Below are the times for each machine. While not scientific, I think the results are very interesting. MacPro 2.66 - 8:48 MacBook Pro (with 10.5.8) - 9:15 MacBook Pro (with 10.6) - 8:29 As you can see, Snow Leopard on my Macbook Pro beat my MacPro 2.66 quad. Not by much, but it's significant when you consider that the MacPro has double the processors and they are faster. I'm thinking my Mac Pro is going to see a big increase once I get around to installing 10.6., but I have to hold off until I finish a project because I'm going to do a clean install and it will take several hours. My Macbook Pro is going to get completely reinstalled on a reformatted drive soon as I get the time. I'm excited now that I've seen what Snow Leopard can do. I imagine it's only going to get better once 64bit comes to Final Cut.