This was more of a general question of a general chemistry undergraduate versus a general physics undergraduate than about myself, personally. Since you asked, though, here is a little more information about myself:
Upper Division Courses:
-Classical mechanics (1 of 2 courses in the physics department)
-Electromagnetism (1 of 2 courses in the physics department)
-Mathematical Methods (in the physics department)
-Quantum Mechanics (two courses in the chemistry department)
-Thermodynamics and Statistical Mechanics (two courses in the chemistry department)
-Inorganic Chemistry (two courses in the chemistry department)
-Physical Chemistry and Materials Chemistry labs (in the chemistry department)
I also have some reading background (finished Marion & Thornton, finished Griffiths E&M, read most of Linear Algebra (Shilov), Abstract Algebra (Pinter), Symmetry (McWeeny), Group Theory (Tinkham), Statistical Mechanics (Tolman), Information Theory (Pierce), and reading Quantum Computing (Nielson), Quantum Mechanics (Shankar), Relativity (Zee), Set Theory (Stoll), and Graph Theory (Chartrand)). I also work in a geochemistry lab and intend to move to a physics lab (most likely atomic) before applications are due. And, of course, I will not be attending for over a year, so adequate preparation is not nearly as much of an issue as admission (if I stayed enrolled and taking classes for credit, I could easily have a degree in physics by spring next year).
Also, that was not to say that I am not passionate, but merely that my passion is more general and that, although certain fields do seem appealing, I cannot say definitely that I want to be, say, a plasma physicists and will settle for nothing less.