hiya - the main site to look at is makaton.org but they don't have any free resources, you can buy pocket books of signs (make sure you buy signs book not symbols as makaton also uses picture symbols but assume you want to learn the sign language?).
I have found the best resource though to be the Something Special programmes on CBeebies (9.20, 1.20 and 5.20 on Cbeebies channel atm)if you can video them or get someone to for you. Ah, but if you are in a yurt that won't be much help will it! (or is that just your name? )
If anyone knows of any websites where you can download signs I would love to know about them...