[campbellcj]

I echo the advice above to first get your feet wet with your current car in a DE or school format without major mods to the car. Then, if you like it and decide to get "serious", your next decision will be to either turn your car into a dual-purpose street/track car (bolt-in roll hoop probably the way to go), do a full race build (and buy a trailer and tow rig), or buy somebody else's finished or nearly-finished race car for 25-50 cents on the dollar.

Especially in today's market, the economics of doing a full race build on a mostly stock street car just do not make sense unless there are special circumstances i.e. you work for a shop like Eric and Evan or have a LOT of time and skill to DIY virtually everything at home. I'm not really one to preach as I did not follow this advice myself with my current car, although I did/do some of the work myself and started down this road 10 years ago.

+1 on the POC as well. Great folks, top-notch instruction and very well-orchestrated events.

To get back to your original question -- if you want a full welded cage I'd talk to Lucas Fab in Orange County or TC Design Fab in the Bay area.