No matter which side of the aisle you sit on, peace is good news for all of us! It looks like Al-Sadr will disband his army and leave the super-holiest of mosques, in order to join the "mainstream political process."
You could certainly argue that the means weren't optimal: I guess somebody finally put their nuts on the table and said "We don't give a rat's petut about your holy shrine, we have the firepower to forcibly remove you from that hole, and we will desecrate it if we have to." Do the ends (peace) justify the means (threats of violence in a holy place)?
http://www.cnn.com/2004/WORLD/meast/08/18/iraq.main/index.html
Dan