To study abroad was something I thought about early on during the biomedicine programme, however where I was going to study was much harder to decide since there were so many options. So when I was trying to decide I had to requirements; I wanted to go to a country I never visited before and a university with good immunology or virology lab. So at last I decide to go to University of New South Wales in Sydney where I found an interesting lab, and Sydney sounded like a cool city, very far away. The first thing I did after I got the acceptance letter from KI was to email several researchers with interesting projects, best thing to do is to start with this quickly after you get the acceptance letter, because what i realised was that most of these professors or researchers are very busy and in some cases it can take a very long time until you get replies.
After I got contact with a researcher happy to be my supervisor I applied to the university via the practicum exchange program. This process was very quick (as long as you supervisor fills in everything) and took around two weeks. All the information needed for this can be found at the web page: http://www.international.unsw.edu.au/study/research-exchange-program/practicum-exchange/
If you decide to go to Australia keep in mind that the flight tickets can be expensive especially if you buy them late. So a tip is to buy tickets as soon as possible, you can find good tickets at http://travels.kilroy.se/, they have student discounts.
Last but not least, don't forget to apply for a visa! You can either apply for a working holiday visa, which is for a year and not too expensive or a student visa (subclass 575 visa). The student visa is a bit more expensive but you save the working holiday visa for another time, since you can only apply for it once.
You apply for the visa online at: http://www.immi.gov.au/ and it's usually a quick process to get the visa accepted, less than a week.
If you decide to apply for the student visa you need a CoE (Code of Enrolment) from UNSW to be able to apply, this you will get as soon as the enrolment process is finished.
And then you're ready for your biggest adventure so far!