Finding housing in the NYCOM area depends on where you plan on settling down. I know some NYCOM students who commute from as far as Brooklyn and Manhattan (about an hour by car). I also know others who commute from Queens, which isn't so bad, and not to mention, affordable.
NYCOM's one fault is that it's in one of the wealthier parts of Nassau County, which generally has a mix of both good parts and pretty dingy parts for a suburb. Old Westbury homes run an average of $1 million, so there's probably no luck in finding a place to buy or even rent near NYCOM.
Most NYCOM students I know live in either Glen Cove, a decent middle-class area about 10 minutes from campus. Rent for a house can be brought down if you find a bunch of roomates, but at the same time, houses aren't easy to come by.
Other NYCOM students might take a look at Roslyn Heights, which is a bit better than Glen Cove, but again, housing for rent is tough to find in Long Island without an agent.
I'd get in touch with current MS2s at NYCOM and find out which of them are giving up their apartments/houses, since the MS3 year at NYCOM is usually in Brooklyn.
Housing in Brooklyn and Queens, fortunately, is pretty easy to find and relatively cheap compared to Nassau County.
Good luck.
Tim of New York City.