Brian,
To answer your question in a usless way, it will be around $3000 to replace the entire front bumper with new OEM parts at typical prices by the time you add paint and labor. Hood will be around $1500 because the part is expensive.
But if you do not know more specifically what front bumper parts you need, and you are not willing to try and determine it from the parts list I gave you a link to in <a href="http://www.nsxprime.com/forums/showthread.php?s=&threadid=17771">this thread</a>, then NOBODY is going to be able to give you an accurate estimate of how much it will cost to repair your car. You certainly do not need ALL the 20+ bumper parts unless the whole front of your car is destroyed. But every accident is different so your exact parts will be different, which can mean many hundreds of even thousands of dollars difference in price.
For example, if you just damaged say the lower valance panel as you suggested in another thread, you may be able to get out the door for maybe $350. If you damaged the main bumper cover, the part alone retails for about $900. An entire headlight assembly, cover, bracket, motor, etc. retails for over $1000 new. So if you damaged a lot of parts, or a headlight, it may cost $3500+ to fix it with new factory parts. $350 - $3500 is a useless range of estimates.
I and many others will try to help you or any other NSX owner, but you have to at least make an effort to help us help you. People can't do everything for you. For example, if you have questions about what parts are likely damaged, post some pictures and we will try to make some educated guesses about what needs to be replaced.