Prosthetics at Northwestern

Today I met with a Prosthetist / Mechanical Engineer at the RIC. We were so similar and hit it off right away! He told me about the program at Northwestern and showed me the research that they are doing at RIC. This really got me thinking about if I want to go back to school. The program right now is 7 months and is going to be moved to a masters program in 2012 (so 2 year program). He set me up to volunteer there 2 days a week so I can get some clinical hours and see if I like it. In the mean time I will continue to apply for more engineering jobs and try to figure out what exactly I want to do. I like the idea of seeing patients and analyzing and adjusting to get people's gait corrected...however, I am wondering if it is creative enough for me...however, my previous job was about the most uncreative left brain job you could have...are all engineering jobs like that? Is it practical to pay 20k for more schooling? All things to think about. The one think I have decided is that I definitely want to do something biomedical.