Recommendations for a Part Time or Long Distance MS

I live in the Boston suburbs: any recommendation for a good Part Time or Long Distance MS stats programs ?

Background: I am an IT professional (Data warehousing). And I wanted to acquire more smarts on data analysis /analytics/data mining. For example, in my current job, we track user behavior on the web. Associated questions range from: how to classify visitors based on their behavior ? how to conduct and analyze A/B tests ? Hypothesis testing - Do visitors who do X tend to be our most profitable ? etc. Some of these are basic stats questions, but I think a comprehensive stats degree would be useful.

Thank you