Just posted this in another thread as well. Take a look at the Fostex PM0.5's. I demoed them against the Edirol, the Rokits and a couple of others that Sam Ash had at the time and the Fostex wons hands down. The critical difference for me was how much more natural and uncolored the Fostex sounded, particularly in terms of the reproduction of vocals. After about a year, I ended up adding the optional subwoofer to them to make my mixes more accurate in terms of the bass. If there is any criticism I can level at these little dynamos, it is that they lack the ability to reproduce all the bass frequencies you need to nail the mix without some trial and error, but that is going to be the case with any nearfield monitor with a 5" driver in this price class. However, I am very happy with the 0.5's and think they are a great value, with or without the subwoofer.
I have this system hooked up to my laptop and am using Sonar 6, i get NO unwanted noise!