I would look for a used Euro bike, Polini water cooled, like 12hp, that should get your blood pressure going, lol. Think there is a nice bike for sale here, $750-$800. The're 3 or 4 thousand new. Click on the blue Pocket Bikes Forsale section on the main page and it will take you to all the ads. Edit: lotus7 has a nice 50cc GRC-RR $800, he is in Ontario Canada though.