Check out love2brew in north Brunswick.
I stopped by the store a couple days ago to begin my wine making hobby. The guys were so informative, answered all of my questions and had everything I needed. They were awesome, didn't try to sell me on things I didn't need, and actually told me I probably have too much yeast. I took it anyway, as their prices were better than any I had seen online (including Amazon.com). I highly recommend this place. As I said, I am just getting started and they spent about an hour going over the whole process with me. Priceless.
If you are just getting started or are a seasoned pro, I think you will like this place. They also have an online store (that is how I found them), but can't give a review about online purchasing as I went directly to the store.