I sorta agree with the previous poster - you may want to practice as a chiropractor for awhile. If you just graduated in 2009, PT schools may view that as you not being committed to what you want to do...I asked one of the schools I applied to (which also offers a PA program) if I would be allowed to apply to both. They said I could, but that it would raise questions of my commitment to either profession. Although, if you explain why you want to make a career shift right after graduation in your personal statement, you may be able to justify spending 3 years in practically med school and then wanting to go to another 3 year program (again, I don't know your situation so maybe it is legit desire to change careers).
On the otherhand, you would be able to show you are capable of doing the work, and have the intelligence to get through a strenuous program.
I'm not sure your motivation for wanting to switch careers - I looked into chiropractor school a bit, and while there are a lot of really bad chiropractors out there, there are also a lot of great ones and I really considered going to school for it. Personally, one day I want to open an integrated practice with chiros, sports med MDs, PTs, and trainers and pilates instructors, and while I'd love to have all those certifications and degrees myself, that's not possible and PT is my passion. Perhaps if you're drawn to one particular aspect of the PT profession, you can find a way to integrate it in another field to supplement your chiro practice (if you love the rehabilitation aspect, maybe get your NASM personal training certification with an additional certification in injury prevention and rehab, etc).