You've gotten a few good answers, here's one more that may require less editing of your scripts that depend on Jons Commands:
set fileNameNew to (fileNameNew & mySuffix) as string -- new name for file
set filePath to (srcFolder & fileName) as string -- path to file to be renamed
tell application "Finder" to set name of file filePath to fileNameNew
HTH
ES
On Jan 30, 2010, at 9:19am, Chuck Pelto wrote:
> Here's the latest of an hours worth of beating my head against the monitor....only to leave slobber all over it....
>
> set fileNameNew to (fileNameNew & mySuffix) as string -- new name for file
>
> set filePath to (srcFolder & fileName) as string -- path to file to be renamed
>
> set file name of file filePath to fileNameNew