besides the no-diesel and camper van issues, toyota should really be outed for not improving the mileage of their trucks. i had a '99 tacoma for quite a while, and when our son was born in 2009 i went looking for a tacoma that would accommodate a car seat. i was disappointed when i found out that the new tacomas don't get any better mileage than my old '99er did. instead of another tacoma, i opted for a dodge diesel in a 3/4 ton 2500 package, which gets better mileage than my tacoma ever did and is capable of a lot more.
and to answer the original question, as small as the beds are in the tacos, i would definitely get a regular length bed.
By the waterside I will lay my head.
Listen to the river sing sweet songs to rock my soul.