Sorry this has probably been asked a million times before, but I'll do it again. 
My Mac Mini died this week which means I can't sync my iPhone to my other machine without losing all the tunes. How can I temporarily use iTunes on my EEE box to download podcasts which I listen to every day, and not lose the existing tracks on my iPhone once I sync?

My Mac Mini died this week which means I can't sync my iPhone to my other machine without losing all the tunes. How can I temporarily use iTunes on my EEE box to download podcasts which I listen to every day, and not lose the existing tracks on my iPhone once I sync?