Stats: Gen1 Mac Pro, Quad Core 2.66 5 Gigs of ram Raptor System Drive 3 other drives for files Usage: Photoshop for web design, Flash, VMWare Fusion to run Windows, tons of browser windows for doing web development, Illustrator, Indesign, Dreamweaver.... all usually open at once. I've had the machine for 2.5 years. 5 gigs seemed like alot at the time, but now as I monitor my iState, I see I am at around: Uptime: 13 days Page Ins: 5,300,000 Page Outs: 350,000 I've attached a picture of my istat also, so you can see my memory as it is as I type this post with my usual "daily workload" programs open I know a 5million:300thousand ratio isn't that bad for 13 days... but would throwing in another 4 gigs make it ever better? It's the old ram too, 4GB (2GBx2) PC5300 DDR2 ECC 667MHz 240 Pin FB-DIMMs http://eshop.macsales.com/item/Other World Computing/53FB2MPK04GB/ is what I am looking at. What do you think? More ram? Or is that not really what is hurting me?