It amazes me when i tell my friends that I have satellite radio, that I nearly always get the response "Oh sweet you got XM." No, no I did not get XM. I got Sirius, it has more unique programing (Howard Stern, Bubba the Love Sponge, NFL, NBA, NASCAR), as good of hardware, and costs basically the same. There is no reason to buy XM unless you want to ride Oprahs coattails as closely as possible. It's $12.95 a month, and the equipment ranges from free to $400 for the portable mp3 units. Go get it, you'll love uncensored radio.
SIRIUS Satellite Radio