I am planning to buy the 24" IMac with the 2.4 cpu to replace my PC. I will dual boot with XP and probably install XP using vmware fusion to support Microsoft database applications and many Windows only Hebrew language applications. I will be using Adobe Photoshop CS3 and Lightroom for photo editing with a wacom tablet. Is 2 giga memory enough for good photoshop performance or should I spent the additional large sum for 4 giga. I am using CS3 with 2 giga memory on my PC with excellent performance. I will order as soon as Leopard is released.