Not my car (Mine's black), but a friend's who uses this stuff.. Here's another pic of the same car:
Here's even more info on the stuff.. It says it takes care of swirl marks too.
http://www.myroadster.net/finishfirst.asp $50 for the entire thing, but my guess is that you really only need the polish, as the other junk is just your run-of-the-mill car cleaner and wax stripper. I like the idea of leaving the stuff on overnight, as I tend to get tired halfway through, this gives me time to rest

Downside is if you go that route, I guess you need a garage.
The Mercedes & BMW roadster guys are using this stuff and are digging it. I never saw silver shine like that before, so I thought I'd pass the info along.