Thank you both very much!
I'm indeed looking at some of the top American schools such as Stanford, Caltech, Columbia, Harvard, etc. Although these top schools do offer master programs in the biological sciences, they are often more book-based rather than the wet-bench laboratory research that I'm looking for. For example, they offer masters in disciplines such as biotechnology, bioinformatics, or genetic counselling, whereas I want to do basic science research in fields such as biochem, molecular bio, immuno, etc.
so47 thanks for the info. That was indeed some of the rumours I heard. If there is someone familiar with the medical sciences, I would really appreciate some insight on how MS is regarded in this field.