Cimarron is an importer of Italian guns. Mostly Uberti in handguns, although recently they've been dealing with Pietta for some pieces.
Uberti and Pietta both updated their factories around 2000-2001 and are now capable of making good guns. Cimarron has a history of placing one of their people in Uberti's factory to do on-site quality control and might be doing the same with Pietta. In the case of the Evil Roy they start with Uberti's best fit and finish level (the "El Patron") and do further work on it stateside. The lesser models are still generally a bit better than most Ubertis and Cimarron does US-based support for their guns, which is a really good thing.
Upshot: I think Cimarron is the second-best method of getting a good Italian SA-type.
The best however is Longhunter:
http://www.longhunt.com/web/index.php?page=firearms
This guy is a gunsmith who buys high-end Ubertis from either Taylor's (another importer) that are already at the "El Patron" level (the best guns Uberti knows how to make) and then tunes them up further. Checking his site it seems he also has a source for the basic "El Patron" models. Some of the Taylor's guns are interesting because they have SASS-specific features like a lower-slung hammer or other options that are highly regarded for competition. He also sells Rugers that are pre-tuned by him.
Basically, this is a really good deal because you're getting quality gunsmithing right out of the box, similar to the appeal of the "Evil Roy" except most sources put him over Cimarron's stateside people.
If you can afford it, and his prices really aren't bad for what you're getting, Longhunter can sell you the best Italian SA available, period, end of discussion once he's laid hands on it.
BUT...if you score a Ruger off him, you will get a better gun yet. Sorry, but the Italians still haven't matched Ruger for a starting point - Ruger's metallurgy is still better and the cylinder improvements that they cycled in between 2004 and 2007 really put them over the top of the Italians.