Mice? Ah... G400? (What Emaree rec). It's loved well. Just don't put it up to your ear.
I have a Logitech MX Performance (got it from a friend). One of the shittiest things I've ever used. Have to charge it every other day. Wireless bugs out randomly. The chrome is wearing away.
I miss my old Microsoft wireless mouse. It had horrible ergonomics, but lasts for half a year on the same batteries.
For keyboards... if you have disposable income, you could pick up a mechanical keyboard.
IBM Model M (Buckling Springs) is just about the best one you can get. Around $50 on ebay.
I have a dasKeyboard (ultimate, which is with blank keys). I love it to death and bought it because I was wearing through cheapy keyboards like crazy. Paid $100~. Most cheapy keyboards lasted me about 2-3 million words, and I'm getting close to the lifecycle end of 10million with my das, but I've had no hiccups.
There's also Filco, and Ducky. And those go sky high in price.
Warning, most mechanical keyboards make one hell of a sound. Its addicting, and I love it, but you might not want to type around people.
Other than mechanical, don't spend too much on membrane keyboard, other than scissor switch (similar to laptop keyboards). Membranes don't get better as the price rises.
Some scissor switches last a while, but are mostly flat style keys. Like the Logitech K750.