Well I've been toying with the idea recently and took the plunge on Saturday. I got a decent trade in value (for the mileage) so said yes. We bought a 320d LCI touring, just nicely big enough for the family and our new Labrador. Tax is low and it had very good torque and I couldn't believe the fuel consumption, so for us it's a no brainer with my 64 mile daily commute. I'll be selling some bits in the near future. So thanks to everybody for their help.