I've heard great thing about HRE's also. A friend is waiting on a set of 18/19 type 546's with the hi-polish finish to arrive any day now. They should look awesome!!!
Have you considered Fikse's? I did a little research on these myself and discovered that they are very strong and light wheels. In fact, I ordered a set of FM/10's 3 weeks ago and desperately await their arrival. I have only seen these wheels on Porsche's, BMW's and RX-7's, and would really love to see a pic on an NSX before they arrive. I know I will be happy with them regardless.
One thing that is very important to me besides quality, weight and style is originality. There are very few mods that can (or should be made IMHO) to the exterior of an NSX, to set it apart from another NSX's. Since I am not one of the few to own a yellow, silver or blue NSX, my 94 red/tan tends to blend in with the other pre-95 red cars.
When the Florida chapter meets next month in Miami, I'm 99% sure that I will be the only one there with FM/10's and this makes me feel good (crazy I know). This will hopefully set my otherwise stock car apart from the other highly modified car in the group. Should be a great weekend!!
Anyhoot, select your rims wisely.
James