The class notes from a graduate course by H.C. Rosu in classical mechanics. Free for download in Postscript and PDF formats. arxiv.org/abs/physics/9909035
Introduction to Lagrangian mechanics, Noether's theorem, special relativity, collisions and scattering, rotational motio www.courses.fas.harvard.edu/~phys16
A complete set of lectures (via RealPlayer streaming video) on classical mechanics. This set includes the principle of least action, Lagrangians, and Hamiltonians. www.chem.brown.edu/chem277/lect2.html
A Cambridge University course with lecture notes, focussing on the Lagrangian and Hamiltonian approaches to classical mechanics. www.damtp.cam.ac.uk/user/tong/dynamics.htm