Off-Topic: http://cristgaming.com/pirate.swf - That's me.
On-Topic: All depends on the genre of music you're looking to buy. I've been listening to Hoodie Allen lately. Some of his songs that I like are are 'Words of Wisdom', 'The Chase Is On', 'Lucky Man', 'No Interruption' and 'No Faith In Brooklyn'.
Oh, you probably know to do this already, but always listen to your songs on youtube first before buying it.