Ideally in a good economic situation, you'd have both the individuals and the bar. I never lowered my car so didn't have a need for the individual adjusters.
In case you're looking at the AWR links, there are also a set from MMR. They're pretty new in the catalogue and I haven't heard anybody run them yet but maybe somebody here wants to give them a shot and let the rest of us know?
http://mmr-direct.com/catalog1/RX7FC/index.htm
I happen to have a spare camber bar sitting around in case anybody's interested...