Zeke,
You should also consider one of VW's TDIs (diesel). I drive a Golf for my daily commute of 80 miles round trip and get over 700 miles per ~$28 tank with a heavy foot.
I'm in northern MA about 30 minutes south of Nashua if you'd like to meet up and for a test drive.
There is also a decent forum over at Fred's that supports the VW TDI nuts, and it's got a good ratio of knowledgeable people.