Louis Burno shows us how to overclock your Dell XPS 700 -- "one of the first systems Dell has shipped that supports overclocking." It's powered by an Intel Pentium Extreme Edition Dual-Core 965 processor, 4GB Dual-Channel DDR2 SDRAM, 1.5TB multiple SATA HDDs, dual 512MB nVidia GeForce 7900 GTX graphics modules in SLI, and AGEIA's PhysX physics accelerator. Video after the jump.