Ithaca Storm Turkeyslayer...get one for about $425-50. Rated one of the best turkey guns on the market. Fixed free-floating barrel.

Ithaca just also introduced a Deer/turkeyslayer combo---storm series gun with detachable barrel---the combo comes with both a 24 inch ported turkey barrel (with extended turkey choke) and a fully rifled 24 inch slug barrel. Can be had for ~$500 without red dot scope, or ~$600 with a Tru-glo red dot scope.

Hard to beat an Ithaca...