Circumstances have changed for me. After a search and a few phone calls, I was able to locate 2 Accurian units and purchase them. I still have the other being shipped to a local store and should be here by Friday. So now I'll have 3: one for my office, one for home tests, and one for backup.
Just backing up some other comments...the mod literally only takes a few minutes, especially if you leave the board in and just disconnect and secure the appropriate wires.
Currently, I'm using an older RCA Lyra mp3 player and some Acoustic Research TSW-110 speakers. I haven't had time to hook it up to my cd-player or something more substantial. I'll try it on my Advents, Playstation, and Pioneer laserdisc. But even with this modest setup I feel this is one the better bang for the buck items I've personally purchased. Three new decent amps for under $50...not too shabby.
I also already had a Logitech wireless music transmitter and receiver that I wasn't using. I'll see how that works out.