I REALLY wanted a Benelli M4, but I know that is out of my reach, so I'm trying to decide between the Nova Tactical, Super Nova Tactical and a Mossberg 930SPX. I have a Remington 870 tactical, and I don't shoot it that often, I just feel like I need another shotgun. What is the real difference between the Nova and the Super Nova? Would I be happier with a "high end" pump, or an "entry level" semi-auto (only using pricing for those descriptions, please no flames)? What would everyone consider a good price for each of these? Thanks in advance for any info or opinions!