so you are basically asking what is a bitchin' computer setup? Well that seriously depends on what it's used for. An all around good system isn't going to be the best at any one specific task, but a system built for something specific isn't going to be much good for anything else. Check out the "Ultimate Linux Box" articles from Linux Journal, regardless of what OS you stick in there, they make some seriously insane setups(quad processor, quad monitor, 7.1 surround etc.).