Welcome to the forum GoldenGirl!
Yeah, I have one. It looks just like Blue Brick's (post # 8) - it's stainless, 4" barrel, and even wears the same Pachmayer grips like Blue Brick's.
I bought mine used, a long time ago. And as strange as this sounds, I bought it knowing full well it had some problems - it didn't take much thumb pressure on the hammer to push it off when it was cocked. I figured someone had done some kitchen table gunsmithing on it.
However, I got the gun for a song so to speak, and the first thing I did was box it up and ship it back to Ruger. I was honest about it too. I told Ruger that I'd bought the gun used, knowing it had some problems, and figuring I'd pay for having it fixed.
I was quite surprised (and pleased) when my Security Six came back a few weeks later - "No Charge." Ruger had replaced the hammer and some trigger parts, and didn't charge me a dime.
Unfortunately, I've heard that Ruger has quit even stocking parts for their great Security Six line of revolvers. So I guess if mine breaks down again, I'll just be out. That's okay though - I've already gotten my money's worth out of it.