Hi all, I am a PC using architect and I am looking to change my battered old HP for a spankin' new Apple iMac. However, I have a slight dilemma in choosing between a new 21.5in standard model or a 24in model which is on sale at my local PCWorld. Now, I am not much of a techie for want of a better word so I would really appreciate your input on the specifications as shown below and the screen quality etc. I will mostly be using Autocad 2010, 3D Viz and Photoshop. New 21.5in Standard Model Specs:- * 3.06GHz Intel Core 2 Duo Processor * MAC OS X Snow Leopard v10.6 Operating system * 4GB Memory * 500GB/1TB Hard Drive * iLife 09 pre installed * NVIDIA GeForce 9400M Graphics Card/ATI Radeon HD graphics * LED backlit display * Built in iSight camera * Slot loading SuperDrive * Wireless Keyboard & mouse included 24in Model Specs:- * 2.66GHz Intel Core 2 Duo Processor * Mac OS X v10.5 Leopard - Operating system * 4GB Memory - Run more applications * 640GB Hard Drive - Load up on photos,videos * 24'' Widescreen display - Vivid colours * NVIDIA GeForce 9400M graphics * iLife 09 Software - Includes iPhoto, iMovie * 8x double layer superdrive - DVDs slide in * Built-in Wi-Fi - High-speed wireless * iSight camera - iChat,iMovie or Photo Booth Any comments you can give me will be massively appreciated!! Cheers, Rkitect.