For one thing, i know for certain someone is going to say something about no feelers.
However, just for reference, i bought my powerbook in my sig for about $900 probably no more than 2 weeks ago. I'd say with 256 mb ram instead of the 1.25 GB that would knock it to about $775, but you have the super drive, so maybe $800-$825...somewhere in that range. I'm sure someone else can come along and give a lot better and more properly researched opinion.
Dane