I have Giancoli and I've just ordered Reese. For the balance between rigor and clarity what would serve me best? I'm looking for something that isn't afraid to get very mathematical, I want to see vector calculus or whatever is necessary to explain the principles as rigorously as possible. At the same time, I don't want to completely abandon clarity and modern comforts such as worked out examples and pretty pictures. Am I dreaming here? I'm wanting something whose first volume is as close to an upper undergraduate classical mech class as is possible without quite being there. Anyone?