I did the Total Chaos UCA and Sway A Way long travel Coilover lift on the front of my truck (about 2.75") and toytec add-a-leaf (1.5" yielded 1") on the back. This setup left me with a more level truck that has a little bit of rake (good).
Check out this thread to get an idea of the setup
and it will give a you a lot of info on the pros and cons of donahoe vs. SAW LT coilovers.
Basically, the coilovers will give you more travel as well as more height. Adding a spacer will reduce your travel. If you rarely take your truck offroad, you'll be fine with a spacer. If you do heavy offroading, go with the coilovers.
I found that the coilovers offer quite an improved ride...they are more responsive than stock...plush on the washboards, but stiff in cornering and braking. I really feel that the handling of my truck has improved.
If you want the Camburg coilovers, you might as well get the sway a ways....Camburg just stamps their name on SAW coilovers and upcharges...per DevinSixtySeven.
You'll spend about 900+ on the coilovers and I can't remember how much I paid for the UCAs ($400?) The new UCAs will allow for better adjustment for alignment, and they are beefier than stock. Don't forget to get a 1" front differential drop IF your truck is 4x4.
Pics.
Before:
After:
next to a silver stock tundra (4x4 and TRD like mine):
close-ups:
I would not have done this lift any other way...the form and function are perfect, and the lift is not too aggressive and useless looking.
Good Luck man!