I've been looking around for that 18x10R/18x9F staggered look without having wheels from 2 different manufacturers. The Verde-Topline site might have an answer. They show a deep dish black in the middle and a not near as deep dish chrome next to it on the left. I've been told from an email that the one on the right with the regular lip is for 17's only. Unless anybody has some other info on whether they make both sizes, I will call them on this. I think
"getopless's" car is the only one I've seen with that staggered look and I think he went with a 2004 or older version as the offset looks to be to much and at least the rears stick out a bit. If you want to check out the site for yourself:

http://tradeunion.com/VerdeWheels/t.asp?n=1119

The left chrome and middle black.

 

I'm 99% sure those are the wheels that Mustang Tuning sells.

 

You're right, Verde is their largest supplier.