From the press release
The high-gloss stainless steel Ruger SASS Vaquero comes with the lower/wider Montado-style hammer found on the Ruger Montado. The SASS Vaquero, chambered in .357 Magnum, features a 4-5/8" barrel, a blade front sight and wider (.140") rear sight, and black checkered, hard rubber grips with SASS grip medallions. Each SASS Vaquero will bear a special serial number featuring the letters "SASS" as a prefix followed by the numeric sequence. These special edition single-action revolvers will only be sold in two-gun sets of consecutive serial numbers and will ship in a red, two-gun carry case.So they have some nice features that will definitely appeal to SASS competitors and they only come in 4-5/8" barrels and .357Magnum. That's probably the best combo for competition as you'll not have much recoil with the .38 SASS loadings and the 4-5/8" barrel is short enough and yet remains well balanced. I myself have just this year added Super Blackhawk hammers to two of my Old Model Rugers to facilitate one-handed shooting and I really like them. I don't think they sped me up any, but I shouldn't get to many hammer slips, the bain of all Gunfighters.
The new SASS vaquero can be had for $1500 MSRP mid summer 2009 (I'm starting to sound like Jim Scoutten)