Where can I find a posting with a list of web-sites I can goto for mods for the RX-8 or can some one post them here or PM me?
Thanks...

there is the factory mazdaspeed part, at least some of them, that can be had through mazdausa.com if you look around, and of course other performance sites. I saw an ad for trussville mazda running the banner on this for a while. They are really good as word of mouth has it. For things like misc. parts you'll either have to look to wholesaler sites like http://www.nopionline.com/nopistore/dsp_years.cfm?vmodelid=171&vmakeid=220&vtitle=MAZDA

If you're lookin for hard to get parts, a seller in Japan will most likely have it. Talk to someone like Japan8 for info on that.