I just picked up a new Onkyo TX-SR606 receiver so I could utilize the lossless audio on my Blu-Rays. I figured while I was spending money that I might as well pick up a couple of SA-CDs, so I grabbed Dark Side of the Moon and Ziggy Stardust.
So far, I've only listened to DSOTM, but it was an outstanding experience. It was like listening to the album for the first time again.

Very, very cool.
If I'm not careful, I'll have another outlet for spending money.
I need to grab some jazz before I lay off the SA-CD kick. I've heard that Kind of Blue is great on SA-CD, so I'll probably pick that up. Any other recommendations?