I've discovered an interesting tool for transferring large files to/from customers, rather than using CD/DVDs or having e-mails fail because of the size. One of my customers sent me one via an ftp site called yousendit. It's free for up to 100MB files, 100 downloads per file, more than that you pay a monthly fee, and it works well.
Their site is yousendit dot com
They have a plugin for Corel X3 and some for other programs, haven't tried that yet.