[nemik]

I'd recommend starting out with Eagle, just use their free version in the beginning, it's more than enough. The best tutorial that helped me most when I was in your same spot is: http://aaroneiche.com/2010/06/24/a-beginners-guide-to-making... It's a little older but applies just the same to the newer versions of Eagle (7 is the latest).

I'd encourage you to start with a simpler circuit for the first time. Then later it won't be too hard to expand on it and adjust trace widths for higher/lower current, and ground planes (or lack of them under RF). Good luck!

And unless you really want to learn how to etch your own boards with chemicals, just use OSHPark and have them send you really nice ones for cheap.