Hi, I run a cummins diesel (2004 24v)here in the uk and have to say its one of the best engines I've ever had! I've had more V8's than I can remember, but the fantastic torque and sound of this cummins beats them hands down!
The tuning is endless if you're into that sorta thing and cheaper than trying to get more power from the v8.
I've currently got a predator and puck with 4" pipe and k+n full intake on mine, which made a major power increase (need upgraded clutch now)yet delivers better economy. (22.3mpg on a run, empty)
Fuel usage isn't really an issue for me, but was supprised at what I am getting for such a big vehicle. (Dually 3500)
Anyway, too much chat- buy a cummins! You won't regret it.
P.s welcome. Hopefully there'll be more chat on this uk branch....