So I have been thinking about getting an expansion, I just dont know which one to get first. Any suggestions??

This question comes up a lot. Check out these threads:

http://www.fantasyflightgames.com/edge_foros_discusion.asp?efid=114&efcid=1&efidt=338762

http://www.fantasyflightgames.com/edge_foros_discusion.asp?efid=5&efcid=1&efidt=348202