I really like Fallout of 3 Galaxy news radio, and i currently have the soundtrack. But i would like to expand the playlist to add more songs that are similar to it. Any suggestions?
Try doing something like this on Pandora:
http://www.pandora.com/station/1866536518763088849
Look through the soundtrack at the artists, plug them in and create your own radio stream, pandora is pretty damn good at picking music you like as long as you tell it what you do and don't like for each track, just for the first little while till it gets the hang of you.