I'm with Builder on this one. Drum brakes, properly maintained, are as good as discs for quick stops (I mean, I can make my new radials screech in protest, how much more do I need?) Unless you're planning to haul heavy loads or tow a trailer, drums are perfectly fine. It's true that prolonged use of drums (like braking a heavy load down a long grade) will create heat fade but again, it all depends on how you intend to use the truck and most of us have gearboxes to help with that. Discs are better in the rain also, but not many guys who've done any rust repair are real anxious to drive around in the rain.
Just my .02 cents worth and I'm sure there are those who disagree.