Raphael zoekt: Een Kamer / Appartement / Studio / Woonboot in Amsterdam

I am a second year student in the French business school INSEEC. I have an internship in Amsterdam from January 2 to April 6. I will work next to the Arena in a computer company.
I am looking for an accommodation in Amsterdam, preferably in centrum, Zuidoost or not to far from public transport but I will have my bike so I will consider any other location.
My monthly budget is around 600€.
I may come before for a visite.
Thank you for your attention
Regards