XM Radio Online and SIRIUS each provide trials of their online services, with no hardware required. Try one or both then use Pulsar to enjoy satellite radio done right.
When your trial of either service is up, the monthly subscription rate for either XM or SIRIUS is just $12.95.
Strange name. Great software.
Airfoil
Wireless audio around your house
Audio Hijack Pro
Record any audio
Fission
Simple & lossless audio editing
Radioshift
Easy internet radio playback & recording
Nicecast
Create your own internet radio station
Pulsar
Desktop XM & SIRIUS streaming