hey Jan, i know i put up a post before asking for some idea based on biomed instrumentation and i even found a few great ideas on the web. but the problem that i face is this: i am studying in a town where it is extremly difficult to get less known chips. for the projects that i found, i require some instrumentation amp chips that are not available here. i can order it from the internet but that would be pretty costly. thats the only reason for which i gave up the idea of doing something in bio med.