draw program for LEGO MOC models?
Even though support has ended, the LDD software still works. Alternatively, you mention LDraw but LDraw is only a catalogue and a standard - there are different software packages that allow you to draw on top of the LDraw catalog such as MLCad and LEOCad - have you tried these to see which one works? I use MLCad extensively - it looked daunting at first but the tutorials at http://www.holly-wood.it helped a ton - worth spending a few hours doing those tutorials.

As per @Philo's suggestion: another program worth looking at is LDCad, which promises to be more convenient and more powerful than MLCad or LEOCad.