Sync Macbook with desktop

I have a windows desktop computer which is my main computer at home. I also have a macbook which i take everywhere with me. All my main computer files are downloaded on my desktop, such as music and work and at the moment if i want them on my macbook I have to connect to the network, access my desktop computer and copy them over. this means that my music library on my laptop is currently not up to date with my latest one as i am yet to copy all the files over.

Is there any easy automatic way that i can automaticaly set my macbook up to copy and update the files on it from my desktop's, or even better have them both sync together so i can make changes on my desktop or macbook?