if you're in north NJ the best thing ive heard is the Nintendo Store in NYC- they are getting shipments every morning, and will continue to get some every day until new years at the least.
but you gotta get there early- 5am is when the line starts every morning. so at least you know you can at least wait on line and give it a shot every weekday morning in NYC!
...some of the chains (Circut city, best buy) are getting new PS3 & wii shipments this weekend but good luck- NJ, especially north NJ- is the home of TONS of ebay scalpers so get there early.
i have 2 friends at a Target, and a Wal-Mart in north NJ- they BOTH told me not to bother, with people waiting on line EVERY morning at Wal-Mart (scalpers) and no new shippments at Target (until the week before christmas!)