Well, after seeing a friend's XM radio with the playback features, I'm thinking more about getting satellite radio.

I googled for "xm radio versus sirius satellite" and I quickly found the following link: http://www.radiosatellite.org/.

Pretty good side-by-side comparison I think. This seems to push me toward Sirius. I like the NFL and Stern programming availability on Sirius.

Maybe this will be a Christmas gift :-)