I don't think just because it is greater than 100K/yr you shouldn't put it down. I think it really depends on the instituation you are looking for aid from. However, regardless of what your parents income is, I think you will still be eligible for the same loans. BerkeleyMD do you know if this is true? If your parents have a high income, and you declare it does that mean you are no longer eligible for certain government loans?
As for schools, if the tuition is 60K a year, then if your parents only earn 100K you still might qualify for some need depending on what the rest of their financials look like. At schools like Duke, where they substract your FAFSA share (based on parent income) from the tuition and then give you a scholarship for half of the remaining amount it seems like it almost always beneficial to declare your parents information. I would call NYMC and talk to someone in financial aid.
You NEED to fill out the FAFSA regardless of whether or not you are currently accepted to the school. Most schools have a deadline about when the FAFSA information is due. Check with the specific schools you are waiting to here from.