Kind of funny you mentioned Bell. I was on-line shopping helmets again and came across the Bell Star at Helmet Harbor which they ranked as one of the top 4 up there with the Shoei X11. Looks like Bell is attempting a come back and even have a couple of team riders for the 2008/09 AMA Supersport season.
My wife has the ZR1 Jimmy Retro
And they have one that will match the color of my Scrambler
I do like the face shield on Iceseven's over the ZR1's that stick out.
However, as for me though I like Bikebit's simply because I prefer a full face over open.
But if you are going to go all out with the modern retro look, including the name, then that Bell RT is the answer.