Tom, my Wife and I test drove a SSB, SRT6 last spring and really liked it. I didn't even notice the suspension being that much firmer either, but I was on some fairly smooth roads.
When I had the opportunity to lay into it from a dead stop, it almost felt like my Viper. Not quite as ferocious for the first 60' but after it got moving it blurred the scenery much the same way.
But the biggest thing I missed was the manual tranny, and I really don't need a car that fast anymore.(not that I ever did)
After I bought the Viper, I thought to myself, where I do I go from here? I'll never be able to afford another car that I'd like as much. Then I bought my Crossfire, and I haven't driven the Viper since.
Maybe I'm just getting old, but I know I'd be getting into a lot more trouble if I had a SRT. In the Viper, most everybody is too intimidated to even challenge you, so you never even have to go over the speed limit. But in a SRT I know every yahoo out there would want to see what ya got, and I don't need that kind of temptation anymore.
I know I'm going to regret not getting one someday, because eventually I think the SRT is going to be discovered, and turn into a "cult" car much like the Mark IV Supra Turbo's, and the Buick Grand Nationals are today.
But for now, I'm perfectly content with my "NA" 6spd. and I really don't want an SRT. But then again, that could all change after I sell my Viper too.