I am setting up a new mac pro for an artist client and am starting to freak out about being able to make it fast enough. Client is an artist who works exclusively in photoshop and creates files with many layers. Currently client is working on a PowerPC G5 with 2.5GB RAM, original 74GB hard drive, original video card, PShop 7, 20" Cinema Display. Client is typically working with 11" x 17" 300ppi files that have many (over 500) layers and average about 350-500MB on the disk with the largest taking up 862MB. To give you an idea what it is like to work with these files consider this: 862MB file on the disk- when open in photoshop lower left info shows 64.9MB/2.34GB File takes almost 6 minutes to actually open!! Just redrawing the screen (zooming in or out) can actually take 42 seconds!! I'm not sure how my client was actually tolerating this. Question is will the new MacPro give me the improved performance required and how can I trick it out so my client can be productive? Here is the machine: MacPro 2.93 Quad core running PS CS4 Will bring up the RAM to 12GB Will use stock video card (hopefully it will suffice) Big question is the storage- here is what I am thinking: Use an SSD for boot drive and applications in optical drive bay HD1 and HD2- Good 1TB drives in stripe raid 0 for data and scratch disc HD3- Good 2TB drive for full backup option 2 is to have a third drive in the RAID for more speed option 3 is to have HD1 and HD2- Good 1TB drives in stripe raid 0 for data and scratch disc, HD3 and HD4- Same Good 1TB drives in stripe raid 0 for backup. My question: Which drive setup do you think makes the most sense and what specific drives do I use for the RAID. Do I need the more expensive enterprise drives which cost 2x a WD caviar black? Is there anything I am missing that will really improve the speed? Thanks!