SWTOR is Star Wars: The Old Republic. The only Star Wars game that is an MMO. If you are interested in trying it, you can get to 70 in 3 days.
Go to this link for a referral that grants seven days of subscription (http://www.swtor.com/r/Cs69Dk}
If you want a great deal, consider this one from Amazon. For the cost of 2 months membership and half the cost of a regular expansion, get 3 months subscription, 2,400 Cartel Coins, a Speeder, and ALL expansions: