I am currently using a Razer Abyssus 3.5G with a Claw-paw grip, a style born in Overclock.net, which is a combination of the claw grip and palm grip styles.
My mouse settings are 6/11 Windows sensitivity, Mouse Acceleration OFF, 20 to 25% sensitivity in the Razer driver with 3500dpi configured on the mouse.
This brings me to roughly the equivalent of 6/11 mouse accel off with a 800dpi mouse configuration, which is the absolute ideal mouse configuration for me. I got used to this when using a Logitech B110 800dpi mouse, polished my technique further with a Roccat Kova[+] set to 800dpi, and configured the Razer accordingly once my Kova[+] broke.
As for the keyboard, I'm using a Thermaltake Tt eSports Challenger Ultimate, but looking to replace it with a mechanical keyboard that has Blue LED backlighting and Cherry MX Blue switches (gotta love the clicky feeling). Super hard to find that in a Spanish key configuration, though...
Post your input peripherals of choice and their configurations here!