Thank you very much Bob for this. Speaking as someone who is currently studying this field, it's great to see someone actually dispelling people's fears. Now, where did I put the DNA to make those living bagpipes?
Also fun field in this vein, synthetic biology, or the making of biological toys, like bacteria which can solve sudoku.
http://www.huffingtonpost.com/2010/11/18/e-coli-bacteria-solve-sud_n_785494.html