Considering career in Biotech/Bioinformatics

I have a BSc. in CS, and I have spent 5 years in the industry. But I am already disillusioned. I am considering entering into biotech/bioinformatics. Since I have always had a passion for the medical field but never had the financial opportunity to pursue it, I am figuring biotech will allow me to use my IT skills for something fulfilling.
Unfortunately I don’t know the exact path to take in order to make this change as painless as possible.

Please advise!!!!!