Airsoft is excellent practice for drawing, presenting, and getting on target.  If the means are there to purchase one of the more expensive airsoft pistols with the "blowback" feature (the slide actually cycles with each shot), then you are able to do some real force-on-force training.  Of course, this also requires another individual to get one and be willing to be shot with pellets.
I'm in the market for one of the more expensive models to practice with, but the Mil Pros haven't been out long enough for someone to make a replica of quite yet.  I'm thinking about getting a 3in 1911 (since their about the same dimensions as a pt111) to practice force-on-force.  The only problem with that is I can't use my leather holster for my pt111.  I'd have to get another cheapo holster to use that is similar.