Cheap coilovers = worse than a set of springs + shocks for the same price.
I've heard skunk2 gave a bouncy ride blah blah blah but that's probably because of high spring rates coupled with a weak dampening system.
Unless you have $1K + to spend on quality full coilovers, a spring/shock combo will work fine. GC's will also work well right out of the box; once you go custom spring rates/revalve shocks it'll be almost as expensive as the full coilover systems anyways.
Shingo