to find a good cardiologist - suggestions:
1) do you have a doctor you really admire (in another field)? if so ask that one for a recommendation. i got my cardiologist's name from my oncologist, that i love and have been with for 12 years.
2) resource with people at work or friends who might have similar problems. ask the doc's office lots of questions - the ones that are important to you, including: where was the doctor trained? how many procedures (that you might have) has he/she done? what is his/her success rate with that particular procedure?, do you enjoy that persons "manner," how long do you have to wait in the waiting room and/or wait for a return phone call?, does the doctor have privileges at the hospital you want to use?
INTERVIEW your docs. don't be bullied into feeling you have to take the first one you might be sent to. be pleasant and polite but be ready to go on to another doc if the first one just isn't right for you. you have to be willing to be persistant!