Dean,
I still like the BBS RC's as they are a very "classic" looking rim to me. *G* If you are going racing or really hard core street use whatever is lightest. (that's in your budget and you can stand to look at) I'm sure Luke could tell you exactly what is the lightest wheel available for the E500. True, rotation is possible with a staggered setup (with the dismount/remount approach) but that usually only helps the fronts where outer shoulder wear is the enemy. If both back tires are down near their treadbars, rotating them L/R will not help much. Front tires, which tend to wear the shoulders under aggressive use, do benefit from rotation in a staggered setup provided that they are only directional. (as opposed to directional and asymmetrical like the P-zeros) Good to see you again Dean. How's the E500?

Hope this helps,
Lee