I really like the carbon / aluminum Trek's from the early to Mid 90's... What other bikes had the same construction?? I think the Vitus was carbon / aluminum frame.. What others?? What gotchas do I look for so I don't get a bad frame?

Here is an example of what I'm looking for:
http://cgi.ebay.com/Custom-56cm-TREK...1%7C240%3A1318

Thanks,
Kevin