Hi OP,
it really is never too early. In fact Im applying for 2012. (jk)
Register to take the PCAT in June or/and august. Oct and Jan are too late. Plus you'll be fresh from school so you'll be in the groove. The test will be fast paced so take it seriously. Take the courses gen chem, o-chem, BIO, phys & anatomy, calc so you have the background. So many people have to retake the exam because they didnt score well, so practice, prepare, and take it extremely seriously because this is one stat which can be your key to success or denial.
Like above person said, get Letter of Rec by summer or before summer so they have at least one month to write it. Some professors take a very long time and some take a very short time. Pharmcas gives you a form or you can just input the professor's information and they will get an email for an electronic letter of rec. Make sure you meet with the professor in person to ask, or email them to arrange a meeting.
Also, start writing your personal statement in June. This is the only component of the application you have immediate control over and you want to present yourself intelligently and professionally. Address the prompt (somewhere along the lines of why did you choose pharmacy and what makes you prepared for it) and talk about your goals and ambitions, and about your experience: for example if you were a technician -- how that experience positively influenced you. Everyone's story is different so there is no right way to do it. Be thoughtful, clear, and honest with yourself. You have all the time in the world now to make your application the best it can be.
Best of Luck