If you plan on parking on-site at any of the hospitals in town you'd better find out whether it's available at all, at any price.
There is a waiting list of at least SEVEN YEARS for a parking pass for the Queens parking garages. The monthly fee is over $100, IIRC. And no, you can't share the pass. If they catch you they'll revoke it.
Night shift staff at Queens can park for free if there are any spots available---and that's a big "if."
Check out the situation at the place you'll be working so there won't be any unpleasant surprises.
Union dues are about $43/month.
I don't know which hospital you'll be working at, of course, but did you inquire about how that hospital handles staffing during times of low census? That might inspire you to keep a tight rein on your budget for at least the first year that you're here.
Anyway, enough of the gloom and doom.
Congratulations on both of you finding jobs here---that's quite a coup! Hope all goes well for you!