I would also reccomend a coil lift over spacers. My original plan was to go with spacers to save money but I ended up going with the full coil lift from toytec (great products, prices, and cutomer service) and am happy i went the route I did.
That being said, look around here and yotatech.com about sagging rear coils and how a spacer lift can make that problem worse. That is why people are at least recommending coils for the rear.
Also, I have a set of OME890 rear lift coils from toytec with less than 1000 miles on them for sale in the classified secion if you wanna save some money. You would still need to find the front lift on toytec or another site though.
Sonoransteel has a lot of info and a great lift but prices are also a lot higher. Search on yotatech and you will find more info than you can handle about lifts. Good luck