Hey burpster.
I'm IS and accepted. My "take" on UCSD is that they are looking for "something special." By looking at MDapplicants, I can see that there were many outstanding students (high GPA, killer MCAT scores) who were not even granted an interview, yet some "middle-of-the-road" applicants were admitted. Part of this might be due to the fact that UCSD's secondary requires a full one-page autobiography. In my heart, I believe this was the turning point for my application. As a non-traditional applicant, I was able to lay out my life's course and really express who I am. If you have some compelling story or real passion in medicine, UCSD's secondary will allow you to tell your story. I loved that about UCSD. I felt like they really wanted to get to know you.
Good luck. I understand your desire to attend there. In my opinion, San Diego is like heaven on earth...the weather, the vibe, the beach. And UCSD is an amazing school that will prepare you in all ways for an awesome career in medicine. In addition to getting great scores, GPA, etc., find something you are passionate about...in the hospital, in your community, in research, or whatever...and pour yourself into it. Then, when the time comes to express yourself in essays, talk about those "extra" things with that passion. Your sincerity will shine through. Best of luck!