I am in the process of putting together a "budget" Old Man Emu lift for my Jeep. Got a brand new set of rear springs from another forum's member for cheap money, never even put on. This all started because my rear passenger side has sagged to the point of rubbing over bumps etc.
It has taken a month or so of piecing everything together, but there are deals out there if you're willing to look for them.
Took advantage of Quadratec's price match policy for the major components because they are easy to deal with on warranty issues. Found the fronts on sale, free shipping, for $71 each, greasable bushings and shackles (OME) for $260 shipped, got the t case drop kit off ebay for $14 shipped, OME shocks price matched from Qtec for $325 shipped (love the enprice match thing), new OME steering dampener from Amazon $76 shipped and U bolts (Rancho) from 4wheelparts.com for $61 shipped yesterday (15% off and free shipping).
All tolled, it has cost me $960 for everything. A "lift kit" from Old Man Emu is about $980 from Quadratec (shipped) BUT without the shackles, greasable bushings, ubolts and dampener, another $600 worth of stuff.
Don't neccesarily have to change everything, but in my case I decided that if I was going to upgrade the suspension, I was going to do it all the way.
Now I just need some snow to melt down so I can put it all on