I just ran accross count5.net (http://www.count5.net/) and wanted to let everyone know that their service is pretty darn good. I was really impressed. Took me less than 10 minutes to get everything set up. They provide real-time traffic reports and detailed referral and search-engine reports (yes, they show what keywords people typed into search engines when they found you!!!). And it's pretty CHEAP too!!
Check it out...