Just to give you an idea of some of the things and kits you can do to the nsx, here is a thread with 1TITENSX's bad @ss black nsx. There are several other owners with nice kits done to their rides as well but i saw this one in person at Hot Import Nights in Atlanta and i remember he won an award. As far as having the nsx as a daily driver, there are several owners that do just that so no problems there. NSX's are very reliable, just be sure to keep the maintenance up.
http://www.nsxprime.com/forums/showthread.php?t=32518
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http://www.nsxprime.com/forums/showthread.php?t=32518
Search the picture gallery for others.