We all know you're not going to the record shop to buy CDs for your party but many folks will still hop onto download sites like iTunes and lay out $50-$100 to create their own New Year's Eve mix. Check out free (and completely legal) streaming sites like Songza. They'll curate an awesome mix for you that will fit with the mood you're trying to achieve for your party, freeing you up for the evening to mingle or figure out who you'll be smooching at midnight.