I say save until you have the money to do it right the first time. That said, I went with RE because I haven't heard anything bad about them and so far I haven't been dissapointed.
I waited until I could afford the RE 4.5" Superflex(full leaf pack), adj. UCA/LCA, SYE, new driveshaft, JKS Discos, longer SS brake lines front/rear. That way you can add to it later. I have a buddy who got rid of their Up country springs and I ran those with 30" tires (no rubbing) until I had the $$$ for my current setup.
If you buy anything 'on the cheap' you will spend more time/money on it for the long run.
Later,
Rough