you can actually fit an amazing amount of stuff behind the seat of a regular cab...even with the seat all the way back.

lemme think...i have full set of ratchet/sockets, wrenches, breaker bar, crow bar, come-along, lantern, flashlight, little air compressor, jack, two tow straps, fire extinguisher, digital multimeter, oil filter wrench, spare quart of oil, spare jacket, first-aid kit, mechanics stethescope, hammer, fsm, spare windshield wiper blade, and a few other things back there.

my truck has a canvas (or nylon, or soemthing) organizer thing with a bunch of pockets riveted to the back of the cab behind the seat...it was there when i got the truck used...not sure if they come with the truck or not. if not, i highly recommend getting one...it will allow you to cram a lot of stuff back there.

the one thing that you miss is the ability to throw something like a backpack back there. but, you can always get a cap...or even a toolbox...in the back and have a lot more storage room.

i have a cap on my bed and carry a bunch more stuff back there...i like it a lot....especially for overnight trips.

also, i love my short wheelbase...there have been a few times when i was able to turn around on tight trails where i think i would have had to back (which would have sucked) out if i had an extra cab.