Which is more important?

I know most, if not all my problems come from my listening/dining/living room. The sound is a bit bright and thin. The sound stage is not bad considering the area, although a bit narrow. Plenty of detail. I think what I am looking for is a sound that is a little more rich, full and engaging. I am not great at describing what I hear, but I know what these components have the ability to sound like together and separately. And I know it could be better. I am also surprised that as great as the Nottingham sounds it does not "blow away" the Pioneer, as it should. I know this table deserves a better cartridge. Is it possibly the Rega reviews are some what exaggerated?

The room and speakers together are the most important component. The two interact and should be viewed as a system. Room gain can supplement the bass of a smaller speaker or make a big one too bloated. How the room reverberates can determine how bright/natural a speaker sounds.

You can't have speakers that are too good. The used market, internet direct sales, and DIY construction of projects by _good_ designers can all keep the price tag reasonable there. However, a sub + monitor setup will give you more placement options to work arround poor rooms.

After that, things to minimize your rooms' effects would be good. A Tact room correction system, parametric EQ for the bass, tapestry you can hang on the wall to kill high frequency reflections, etc.

Get A good line conditioner AND most important if your components have detachable power cords, upgrade these. They
will come in handy when you are ready to venture out of the Military since even good components come with stock power cords.