What are my chances of being admitted into Holy Cross' pre med program?

Your chances look really good. I would suggest applying early decision if HC is really where you want to go. Make sure to show interest in the school, go on tours, open houses, and you MUST have an on campus interview. I realize its a bit of a drive from NH but not interviewing significantly lowers your chances. The interview is HIGHLY RECOMMENDED one admission officer said "if you have an opportunity to interview and don't, your a fool." Good luck you can do it. It's a great school