Hi all, I'm planning on get my first Mac, and am stuck in regards to VRAM. When all VRAM resources are used, how much system RAM can be used as shared resources? Is there a limit as in some PCs? For example, some allow 64MB dedicated and 64MB shared. I ask this because I am deciding between the 2.2 and 2.4 MacBook Pro. I would by the 2.2 with the 160GB 7200rpm drive and upgrade myself to 4gb RAM. If I decide for the 2.4, it will be the baseline system for some time until I upgrade the RAM. The extra VRAM would be great, but I'm unsure if the 2.2 system with 4GB RAM would be a better choice. Plan to use: Photoshop, GarageBand, iMovie, iDVD (if this helps) Oh, and I will be hooked up to a 24" monitor when not portable. Please help me clear up some confusion. Thanks.