I have a "high" cap for my truck. Rear cap, but about a foot higher than "normal" cab roof height caps. Makes a HUGE difference for access... I can actually get into the bed of truck while crouching a little bit.
Also, I have full length flip up side windows - the whole window on the side of the cap lifts up and out of the way when you open it. Again, allows me access to my bed.
Also think about getting lights for the inside of your cap... not just the front or rear, but both front and rear. If you find yourself accessing the bed at night, it is really nice to have it lit up!
I do love my high cap for utility, but it is not quite as sleek looking as the cab roof height caps.
