Those TDIs get awesome mileage and Diesel at least where I am is anywhere from .30-.45 cheaper per gallon. I don't think Diesel will go up as much this summer either.
I've had an '04 SVT 5-door for about 8 months and love it. I had an 03 COBRA before that and a '91 notch before that. This SVT Focus handles far better than either of those and is WAY more comfortable. Oh, and I average 28-33 mpg freeway, 25-28 city.