Here are a few tips (and since I am not anywhere NEAR the NYC area
...I will have to help you free of charge from Atlanta
Start with GOOGLE, it is a bride's best friend! You can find everything from your venue to your planner to your flowers, etc etc etc - on GOOGLE!
Eventective *which you are already on*, is another great place to find vendors and venues in your area.
Something to remember: There are a LOT of venues in your area that offer "in house" wedding planners, and if you choose "their venue", they will be MORE than happy to help you out with setting up EVERYTHING!
But, until then- I will be more than happy to help you a little!
Here are some of the venues that I have found in the Queens area, in your price range, ($60-$80 a head) that are mostly "all inclusive" and beautiful!
*Genarro's (Brooklyn) - www.gennaroscatering.com
*Grand Hyatt (Manhattan) - www.grandnewyork.hyatt.com
*The Event Space (Manhattan)- This venue can be found here on Eventective under New York, NY venues.
I will continue looking and let you know what else I find. In the meantime- try going under "venues" here on Eventective to try to find some more!
You can also contact me personally through Evenetective, so I can give you my direct contact if you need more help!