you may prefer the 1st gen crx (started '84 maybe?) for an autox beater. Its the lightest, the cheapest, and has the most autox potential (imo). The civic si HB and integra are also both very capable chassis (pl. sp?)
also, if you eventually want to move into the harder classes, the suspension responds well to carefully selected upgrades. You can also upgrade the civic/crx engine to the integra one or to a 1st-gen B16, with a little work. I have seen a few very successful cars with this setup, including my roommate's pre-saab-phase car.
Being a worn and weary veteran of the used car market, my advice is to hold out for the best car you can afford--don't make any compromises.
I think you're making an excellent choice, good luck.
:thumbup: