Greetings, I recently upgraded from Snow Leopard to Lion and my iMac is now painfully slow. Sometimes it takes Photoshop CS5 multiple minutes (spinning beach ball) to process things that took seconds before the upgrade. It's not only isolated to Photoshop. I'm also having difficulties with Firefox (ver. 5.0.1), Aperture 3 (ver. 3.1.3) and other programs. I've tried repairing disk permissions but I didn't see a speed boost. Here are the specs for my iMac: Processor: 2.66 GHZ Intel Core i5 Memory: 8GB 1067 MHz DDR3. Anyone have any new suggestions? Or is this something I should expect for a iMac that is a few years old? Thanks!