You'll love commercial-free music on Sirius Satellite Radio. Sirius now has many radio products to choose from, like the portable, vehicle and home radios. I have mine set up in my car and listen online too. You would also probably be surprised after listening to Sirius to find the many number of businesses now using Satellite Radio. Download the Channel Guide here.
Here are some of the Stations that I listen to:
Channel 21: Alt Nation - Rock: Alternative Rock (Madison is a great DJ!)
Channel 24: Lithium 24 - Rock: 90's Alternative
Channel 26: SIRIUS U - Rock: Indie, Underground, Imports
Channel 30: The Coffee House - Rock: Acoustic Rock
Channel 1: SIRIUS Hits 1 - Pop: Top 40 Hits
Channel 11: BBC Radio 1 - Pop: New Music from the UK