Best undergraduate degree to prepare for research pharmacy?

I am looking at becoming a research pharmacist and I am just now preparing to go to college.  I am looking at Biochemistry but are there any other majors that are more perferable or would work as well as a biochemistry degree?

Also what is the difference between say a PhD in Pharmacuetical Sciences and a PharmD?  I am looking at the UNC School of Pharmacy and I see they offer both and I see that pharmacuetical research have both kinds of doctors.  I want to do research and not really as interested in being a practicing pharmacist at a Walgreens or anything.