If you don't mind a bit of extra scripting, you can run md5sum hash on remote side, copy those over first, then as your files are transferring md5sum hash on the local side and once they match, you know your files are done copying
Also a very good idea, because even if the file is done copying, you won't know if they are pristine copies until you run the md5sum hash anyway
Fresh in my mind, just wrote a blog post about this and why md5sum hash is a very valuable tool
http://geekswing.com/geek/the-magic-...sha-1-vintage/