I have dozens of .wav files mixed in Sonar 8.5 and I want to master them with a chain of PSP effects.  I am looking for a program that will allow me to specify the chain of PSP effects and then process many .wav files with them.  I could process each one individually in Sonar but it's very time consuming.

Wave Lab does Batch process. Elements is only $80 or so. 
I am not at home but I think you load into a audio montage and highlight. Put the EFX in the master and render. Wave7 lab loads all of my Sonar 64 bit plug ins. Doesn't use Bit bridge so 32 bit won't run. 

Wavosaur supports batch processing with VST chains and is free

Hey thanks Steve I just downloaded and will try it, I don't have Wave lab here so this might come in handy. Stienberg is a pain to use on multiple computers. 

You are welcome. The 64bit version is new. While it worked, it threw errors on save. The errors did not appear to affect the program or the files that I was testing. The 32bit version has been around for quite a while and does not throw errors. I do not use it for much because I have SoundForge but do still test a few of the free editors.