For grinders, your best bet is to go with Hario, a Japanese company whose engineering is unrivaled. The Skerton (shown above) is what we personally use. You can manually adjust the settings depending on what size grounds you're seeking, and since it's a burr grinder, you can depend on it to grind your coffee evenly. Best of all, it's durable.
To make sure our coffee stays fresh and that it doesn't get damaged during travel, we like to use a dry bag similar to those offered by Outdoor Research. Unlike a Ziploc, or—God forbid—the bag your coffee actually came in, the roll top stays closed even under pressure, which will make sure your clothes don't end up smelling like coffee. On the other hand, if smelling like coffee is your thing, who are we to stop you?
Rounding out the basics is an OXO jigger which we use to measure our coffee beans. One and a half ounces weighs about fifteen grams ( one and a half ounces by volume equals fifteen grams by weight), so with this figure in mind you can scale up or down depending on how much coffee you'll be making. For added convenience, the jigger fits neatly inside the canister of the Skerton grinder. It's the perfect compromise between precision and portability.