I wouldn't count on a Big Law job, especially given the current state of the economy. However, you do attend a decent school, so I don't think you'll have a problem finding a job. It all depends on your perspective. There is nothing terrible about a 70k job in a 40 attorney firm. Everyone has to start somewhere.
Another factor you need to take into consideration is your background. If you do not have a unique background, then you need to distinguish yourself somehow. One way to do this is to get As in certain classes. For example, it's better to have 1 A in Torts, 2 Bs in Contracts and Civ Pro and a C in Property than 4 Bs in those subjects. With that A, you can start the conversation about doing litigation for the firm. Another avenue is to focus on a single club, working your way up to a leadership position and talking about that in your interviews.