rjw5150 
2005 Toyota Tundra Double Cab 4dr Double Cab SR5 4WD SB (4.7L 8cyl 5A)
After 5,000 miles with my 2005 Tundra...
 I bought the truck used in July 2008 and have been pleasantly surprised at the comfort and performance so far.  When buying used, I highly recommend a Toyota off-lease vehicle given that it is easier to see its maintenance history.  I didn't buy an extended warranty because I expect Toyota to be built well and durable.  So far that is the case and my Tundra drives well, the double cab exceeds my expectations on space and room, the engine provides adequate power for our homeowner and daily driver uses such as hauling lumber, furniture, and the occasional load of dirt or rocks. Everything appears to be functioning as designed. We'll see how well the truck performs as I rack up the miles.