I'm on my 2nd double cab 4x4 (I traded in my first on an impulse decision and regretted it every day). Both '05, both TRD 4x4 package. My first had 90k (of which I put 68k on) and my current has 140k. IMO this is the best full size, off-road capable truck for the money! Like mentioned above, the 05-06 have a 5spd transmission that has a built in engine braking feature...very nice going down grades. The truck is 7/8 full size but is very roomy on the interior with a full 6.5' box. This is one of the last full size trucks that is extremely capable off-road and isn't to massive to take in the woods; almost every manufacturer has huge, boxy trucks after '07. Here's my current truck, and I'll drive it until the wheels come off.

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-JW