How much lift are you looking for? Do you have more time or money? If you want to bolt on some springs and go then I would recommend either Old Man Emu or Skyjacker. Try to get rear lift springs though instead of blocks, they will control axle wrap and likely flex better. Judging by the price I would guess that the kit you were looking at does not include rear springs.

Junkyard springs are proven and work well if you have some time and want to scrounge the yards and experiment. A lot of people run either YJ Wranger, Wagoneer, or rear Toyota springs in the front of their trucks and Mazda or 1/2 ton Chevy springs in the rear.

I personally run All-Pro springs all around on my truck. They are reasonably priced and work well on the trail and the road.

Check out the suspension section on Toyotalinks.com for even more options.