B737 NG Cockpit Newbie Questions

Hi I am new to this Forum, my Name is Jan, 31, Pilot from Germany. I am planning to build a 737 NG Cockpit as real as it gets.The Ultimate Goal is to have a JAR/LBA approved Full Motion Sim in the next 5 Years to be able to obtain a 737 Rating.I would like to start fixed base FNPt, with the option of adding motion later on.My Question is now:should I go for microsoft FS w PM, or Xplane / Flight Gear?I would like to have all the Systems with Failures and Abnormals, wich is the best way to go?Are there any original Control devices (yoke/Pedals Trim)wich have force feedback like the Original that can be bought ready to play?Thank YouJan