Songs to Go on the Pod

The longer I have my iPod, the more things I discover that it does well. I’m all crazy about the free podcasts from the iTunes store (including the Folk AlleyCast – put Folk Alley in the search box and it will pop up) and TV shows I might have missed (Project Runway – don’t judge, I don’t have cable). And of course, the music. My sis-in-law got me an iTunes giftcard for Christmas. What should I spend it on? A full album or single songs? Any suggestions (especially from people who hear music I don’t, perhaps from a foreign country)? I’ll let you know what I finally download.