Tips on Buying Cars: Price, fieros, many cars

Question
I have an 84 Fiero but i wanted to know if there's a website where i could find the value of the car if i want to sell it, because ive seen some Fieros go for a lot more than KBB because they were only made for 5 years but i dont know how to accurately set a price for mine, maybe you could give me some guidelines.

And also can you tell me about how to buy cars at auctions? and some legit places i could look or how to find them. And your opinion do you think it's a risk to buy cars at auctions?

Answer
How many miles are on your Fiero?  Also, what state do you live in, some states require a dealers license to attend auctions.
Also, it can be a risk to purchase @ auctions.  We buy many cars at the auctions but we realize we have to spend money on everyone one of them to be ready to sell to the consumer.
best Regards,
Ron T.

By the way..several are selling for 5,000 or more on ebay.