I lost the use of my left hand in a motorcycle crash so I have used revolvers exclusively. Racking a slide can be done one handed but, since I only target shoot, I didn't want to fool with it.
I did get an urge once to look into buying a pistol and found this neat little item that may be of use to someone. A little bar that attaches to the rear of a Glock slide that can aid in one-handed slide racking. It doesn't look like something you would want to carry concealed but could help in other situations. I didn't buy an auto and didn't buy/try the device but thought I'd post it FWIW.
http://www.brownells.com/handgun-par...prod42165.aspx