Open access learning really is taking off, from the Open University to MIT OpenCourseWare, the OCW consortium iTunes U and universities even having their own YouTube channels. Its a wonder where to start or stop. One website has collated a group of good courses (mostly american) that are sorted by subject. http://www.openculture.com/freeonlinecourses, but my recommendation is have a look around the various options available to see what takes your fancy. The OCW has lots of choice, many universities all over the world take part, including MIT and the OU, the courses are available in many languages and it has a good search facility, so that would be my starting point and move on from there.
Happy new year!
Edit: MIT are expanding on their successful OpenCourseWare and creating a not for profit, free interactive elearning platform which will offer the online teaching of M.I.T. courses free of charge
to anyone in the world.
You will not get a full degree but a official certificate from MIT instead. See link.