to answer his question, I would go for the Mirage. I don't know what velodyne your talking about, but if its 250, I think the mirage will stomp it.
I have campared the Engery version (S10.3) to the velodyne DLSR5000R and it was tighter, and went down jsut as deep. I think for 250, your getting a hell of a deal, as the cheapest I can get the s10.3 is around 500
I say go for it, unless you want ot save for a SVS.
Sheep