We use Mint and GA. GA for goals and long-term trend planning and all that stuff; Mint purely to see the source of traffic spikes and search keywords that are driving traffic. I've been told that there's good stuff in Peppermill, but haven't been bothered to investigate. (Avinish is pretty insistent that you don't try to track the same stuff with different programs, otherwise you'll go mad trying to reconcile.)

Echoing that. I have 6 Mint licenses, and have recommended it to several clients. It's good stuff.

I second that too. It's a nice application and cheap.