I have a couple-month old 2.66 Quad Core that's been struggling with exporting PDFs from large InDesign files - getting an "Out of Memory" error. I have 3GB of RAM and I'm using CS2, and I've noticed that InDesign, Photoshop and Illustrator put a hurting on my RAM. Today, after working on a few 50-60MB files, Photoshop was laying claim to over a GB or REAL RAM, not virtual. InDesign usually hovers around 400-500MB and Illustrator's not much better. Would I be better off getting another 2GB of RAM or upgrading to CS3 so it's not running under Rosetta anymore?