In reply to antwan:
Do you mean waterproof trousers? Go for something cheap and thin like the Trespass ones that come in a wee stuff sac - they're even apparently breathable, but that's not really of much concern.
For tents, try and get a Eurohike Backpacker 210 cheaply second hand on Ebay, replace the poles with alloy ones, and use the minimum number of lightweight pegs you can get away with (either from another tent you have, or buy a few v-type ones and then short stubby plastic groundsheet pegs). Weighs around 1.8 kg total, is comfy for two (with practical entrance so you don't need to climb over each other), and handles the wind okay.