The default view from the stock DC-3 virtual cockpit is not very good.  I find that it sits you too far aft and too low.  Now if you want really poor forward visibility, sit in a F4U Corsair.  If you ever see aircraft like the F4U taxi, you will see the pilot swinging the tail side to side.  It's a technique known as "S-turns" and it is done so the pilot can see what's in front of him.

I don't know if it's been mentioned before but the proper way to taxi is to do s-turns and by looking at your 10/2 o'clocks. This way you can see forward and also the edges of the taxiway/runway in order to stay in the center. Also, as you accelerate on your takeoff run, you want to slowly push the yoke forward and thus raise your tail as soon as enough air starts flowing over the elevators. This will raise the tail and allow you a clear line of sight over the nose.

 

 

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S-turns all the way!

 

This guy "Keysounddotcom" does some amazing FS videos, here he reviews the Uiver DC2, and during the video he explains a bit on the finer aspects of taxiing an old twin.

 

It totally depends on the airplane, but when using the elevator to lift the tail off the ground, the main thing to avoid is lifting the tall wheel off the ground before the rudder is effective.

 

On some aircraft it is effective the moment you give full throttle, on others you need some airspeed. If you lift it too soon, you may be in for a ride, especially if there are cross winds. FSX doesn't simulate this too well IMO.