Well, it's already been mentioned by the MAAM-sim ports over decently, for huge improvements in flight dynamics, visuals, etc. There are some flickering gauge issues, and not everything is clickable in the VC, but it probably has the most flight hours of any model in my extensive payware collection.
Second, if you are going to go with the default (which is decent), why not pop over to dc3airways.com and download their tweaked and enhanced default DC-3? The guys over there are second to none in knowledge and experience in real life DC-3 and they have significantly enhanced the flight dynamics and realism of the default. Plus they have a wide array of useful panels (with custom gauges), and lots of info in general on both sim and real DC-3 flying. Also, you can find lots of historical routes and such to fly in your DC-3.
Ok, this is starting to sound like an advert. I just like the DC-3 and found that if you are remotely interested in it, you will probably benefit from checking out their site.