Moving to New York?

Cell phone camera picture of the Empire State Building at dusk, from the top of the GE Building at Rockefeller CenterYesterday, I returned from a four-day visit to New York City, where I spent some time at the company for which I may be working, toured some museums with my dad, ate wonderful food, and watched the amazing Macy's Independence Day fireworks show.
Before I make a final decision about moving to the New York City area, I just have a few loose ends to tie up. But, if everything goes well, which it should, I'll be on my way in under three weeks.
Now, I just have to figure out where I'm going to live. For the first six months, I'm going to try to live inexpensively somewhere outside of Manhattan and make my daily commute to the financial district on the extensive rail network around the city.
There are so many choices for places to live, and they all have their peculiar commute times, prices, noise activity, and so forth. I'm finding it incredibly difficult to narrow them down. I imagine I'll be back in New York soon enough, spending a couple days looking at possible places to live. It's exciting, but it is truly a pain to organize this whole endeavor.
If any of you have suggestions that may help, I'd be glad to hear them!