at the top of the Ohio section you'll see a thread about ohio cars for sale or want to buy. This thread should be posted in there.
First off, Welcome! Ohio section contains alot of really great guys from all over the state, if you ever need help feel free to ask for it here.
as for your question, like I said there is a "car for sale" its one of the blue "sticky" threads at the top of the page. Also, there are the normal sites ie. cars.com, craigslist.org, autotrader.com. Also on the main page at the bottom there is a "cars for sale" thread which would cover all cars for sale not just Ohio.
and if youd like a dark green 94 3000 with 175k, great mechanically and garage kept, with leather, you let me know
once again welcome and hope to see you around!