For the keyboard, I've been very happy with my Razer Tarantula that I have been using for a few years now, so the day that I change it, I will probably go for the Black Widow Ultimate Stealth edition.
For my mouse, its a mouse that you will either love or hate, I use a
Nova X600 Slider3200dpi, ceramic feet, 3 profiles, 3 dpi settings (both can be changed on the fly) lights can be personalised. A lot of friends that have tried it find that it slides too fast (because of the ceramic feet)
Other thing they don't like about it is the wire comes from the side of the mouse and not the front like "normal" mice.