FTP auto permissions

[Arisen]

When I do site development I have to interface with a Windows FTP server to download the latest files and psot them to my development Linux (Apache) server. When I download the files the Windows files, the permissions seem to foll th files to the linux server. Which, or course, causes access problems and it is a real pain having to change the file permissions all the time. Is there a way I can automatically force the Linux permissions onto the new files when they are downloaded?

Thanks