I want to go to graduate school to study computational molecular biology and biochemistry. 

During my first three semesters as an undergraduate I finished my distribution requirements and started doing research with one professor. During my fourth semester I started doing research with two more professors (working in computational biophysics and computational linear algebra). My work with two of these three professors has already led to work that will be published soon. I am considering starting research with yet another professor (in statistical genomics).

**Is it wise to begin research with yet another professor?** I fear that having engaged with too many professors makes my resume read like that of a dilettante rather than a promising computational biologist.