Nice cars man. The IROC still looks bad a$$, the 5th gen looks LARGE, sinister but LARGE.
I have an IROC that is the same color as yours, with some modern updates. If your interstested you can make the 80's tech 5.7 kick the crap out of your 5th gen. Intake, heads, cam, tune and exhaust. Your IROC is about 300 pounds lighter than the 5th gen also, it's doesnt take much to make it outrun your SS.
By the way, my wife loves the 5th gen Camaro and will have one in the garage in a couple of years.