Hi Emina,
If you click on the link below, it features a discussion about Beginners Music. If you read message no. 4 it has some of my suggestions for Beginners Music.
Most of the tracks you should be able to purchase off iTunes for 79p a track, it saves having to buy whole albums.
Hope this helps.
http://www.salsacity.com/forum/forum1-topic1436
PS By the way, have a practice after the classes as well, read my message - no.3 on the link below for some encouragement.
http://www.salsacity.com/forum/forum2-topic1940