I am currently going through the match process as a US Citizen in an Irish Medical school. There are about 20 or so people in my class (the 5th year) who are also going to train in the US. Most of them have already taken offers outside of the match - at above average institutions. As for myself, I am applying as a couple - so we did not accept the offers that we got outside of the match.
For myself applying in Anesthesiology, I applied to 36 programs, got 28 interviews, and went to 12 places. I was received well everywhere I went. Actually moreso at the large prestigous university programs - they have a lot of respect for the Irish and British systems. Do not allow yourself to fall into the trap of thinking that US Med Schools are the only thing. Yes they are 1st class institutions, but it would be ignorant to say that no other country is at least comparable.
As an International Graduate, you do have to jump through a few more hoops - you have to take both sets of exams, as well as the money-grubbing $1200 CSA. Although it may have taken a bit more effort, it has been well worth it. I would never trade my experience.
Being at berkeley, I'm sure you'd be interested to know that one of my classmates matched at UCSF in Optho which we all know is pretty damn competitive.
If you want specifics, feel free to e-mail me privately. Good Luck and don't believe the hype!!