For PA I found the LIDAR stuff here,
http://maps.psiee.psu.edu/ImageryNavigator/
The problem is, as I see it, This is an index type map. Once you download Your tile of interest.... you can't view it. At least I can't. I've had several more computer savvy people look at it for me and what we believe to be the case is that we need a much more sophisticated imaging program installed. Problem is, they're quite expensive. If you come up with a program that opens for view the individual, downloaded tiles, let me know please.
I will still fiddle with looking into other software alternatives but frankly, I just can't sit and deal with it for the amount of time it may take.