I have a similar query, although I am in path and wanting to switch and am confused about the whole prelim yr thing.
I spoke to the PD in anesthesia at my current program and realized that were I to go for anesthesia, I would have a gap in my training if I started a prelim year in medicine in 7/09 and the best I could hope for would be a CA-1 spot beginning 7/11, since I have done no formal rotations in Anesthesia and hence have no letters from attendings to recommend me to PDs.
So, my dilemma is, should I aggressively apply, call, do whatever, etc to get a spot in CA-1 to begin 7/10, or apply now for prelim IM, formally take some elective time in the spring to do a rotation in anesthesia, and have a gap year to spend doing God knows what? I've even thought about spending the year doing either some formal research in the field or even paying tuition to get an MPH (something which I am genuinely interested in), or even applying this time next year for outside the match 2010 openings.
I am so confused about the process and compounding the grief is that I am so unhappy in my current position and time is so very much not in my favor right now, it being the week before Thanksgiving and nothing gets read before the first week of Dec. Please help!