Seems like the MIT license will work for you:
  Copyright (c) [year] [copyright holders]
  
  Permission is hereby granted, free of
  charge, to any person  obtaining a
  copy of this software and associated
  documentation  files (the "Software"),
  to deal in the Software without 
  restriction, including without
  limitation the rights to use,  copy,
  modify, merge, publish, distribute,
  sublicense, and/or sell  copies of the
  Software, and to permit persons to
  whom the  Software is furnished to do
  so, subject to the following 
  conditions:
  
  The above copyright notice and this
  permission notice shall be  included
  in all copies or substantial portions
  of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS",
  WITHOUT WARRANTY OF ANY KIND,  EXPRESS
  OR IMPLIED, INCLUDING BUT NOT LIMITED
  TO THE WARRANTIES  OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND 
  NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT  HOLDERS BE
  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY,  WHETHER IN AN ACTION OF
  CONTRACT, TORT OR OTHERWISE, ARISING 
  FROM, OUT OF OR IN CONNECTION WITH THE
  SOFTWARE OR THE USE OR  OTHER DEALINGS
  IN THE SOFTWARE.