I will say, treating a room without the monitors is a little silly. How will you know what kind of response you are getting? And without a little knowledge you could just ugly up the room. Yes I treat my main room, but the treatment changed when I made the monitor switch.
I previously used a setup with a subwoofer and two satellites. I like the new nearfields much better.

As Silvertones said, you *should* be using low volumes anyway. Nearfields have their purpose and use.

Also a word of warning, if you go with the M-Audio's, remember to set the volume at around 15-20% when you first turn them on for your initial listen. If you have them at 50% you will need to be standing back a bit; they are capable of being very loud. I have never even approached the 50% mark with those monitors.

I do not work here, but the benefits are still awesome
Make your sound your own!