Pickup or wagon is a personal choice.
The wagon has easily accessible interior & tidy packaging. pickup is great for very flexible cargo carrying options.
I've used the 4th gen 03-05 4Runner for 3 years of wheeling and offroad trips.
It's nice to see Scott Brady is finally convinced how great it is after poo-pooing mine for a couple years:shakin:
The V8 4R is a great platform to build off if you are going for a wagon. Check out toyota120.com for like minded 4R owners and many ideas.
For a pickup, really there is no better reference than a visit to Bajataco.com:bowdown: also, desertdude's site has great buildup pics of his tacoma- great ideas there as well. I think it's homepage.mac.com/desertdude
I think a king cab Tundra V8 would be a good choice if only b/c you can probably get a great deal on one and it's a good truck.