I've got my Core 2 Quad Q9300 running at 3.6GHz (480 FSB if I remember correctly). My mobo is the asus p5q-e, voltages are at 1.34 for cpu, 2.1 for ram. ram is 2x2gb of mushkin pc2-6400 @ 960MHz (5-5-5-18-2t). running my asus eah4870 dk top 512mb at 835MHz gpu/ 1140 Mem. (a quick side note: i have noticed that running my ram in the black slots provides much better stability, and have read this is true for others as well. try it if u have an asus board). overall, i use it for everything i can think of. i game, i benchmark a lot, i like to mess with rendering programs every now and again. i use photoshop a lot, but mostly for casual messing around usage. overall i couldnt be happier with my pc, and overclocking has led to an extremely fast system, way faster than not being overclocked. also, i installed ubuntu 8.10 on my secondary hdd, and with this setup it goes from POSTing to the login window in about 8-10 seconds at the most.