[zippy]

Perhaps not

Just wondering if a set of BFG all-terrain's would look good on my truck since it's 2WD?

Playing devil's advocate...
A new aggressive tread on a 2x4 may suggest the owner isn't cognizant of the rapidly escalating fuel prices. Do you really want to decrease you MPGs?
... just a thought.

It doesn't matter what others think, it's what you think that matters.
Beauty is in the eye of the beholder. Margaret Wolfe Hungerford (née Hamilton), 1878
Do your own thing. Ralph Waldo Emerson, 1841