Got a bit of commuting dilemma myself. I'm currently doing a round trip of 40 miles a day, it takes 30 minutes each way on average. Work announced to us on Monday that within the next 6-9 months they'll be closing our office and moving us 20 miles down the road. So that means my commute would be an 80 mile round trip.
The thing is, 60% of the journey is on the A14 (urgh) which, as anyone who lives around there knows, can be a bit of a bitch (regular crashes, standing traffic etc). At an estimate, I'd say my commute would be an hour to work in the morning, and possibly an hour and half on the way home (both are best case).
Is a commute of that distance and time too much? I do own a diesel car which gives me 55-60 MPG, and I'm currently sticking in around £100 of fuel a month. Obviously this would double to £200 a month, and running costs (tyes, servicing etc) would also be a fair bit more as I'm doing twice the mileage. I really don't know whether to bite the bullet and do the longer commute, or look at moving closer to the new place of work (thing is, I really don't like that part of the country, why move somewhere that I don't like), or even look for a new job...?
...or maybe a similar mpg in an Astra 888, if I have my sensible hat on 
