I think that you ought to try pulling the Ospreys further out into the room first. The Ospreys are a great speaker. I went to buy a set right when Meadowlark went out of business and the local dealer sold his last pair three days before I went in to buy them. The dealer had them in a small room, so being in closer proximity to you will be okay.
I had two friends pull my speakers out from my wall and actually place them 4' from my ears (I have a small room). They are now 7' from the front wall. I freaked out when I saw them (so does eveyone else), but when I sat down the soundstage had become so much deeper it was amazing. The thing that really threw me off was that I assumed that the soundstage would be too close to my face, but it wasn't.
Try it, you don't have anything to lose. Dynaudio make really good speakers, I haven't heard either of the two speakers that you mention, but the Dynaudio C1 is a great monitor.
Chuck
