Thanks for all the help so far! I will look into the macbinary module. Meanwhile a little info on my goals.
We are in the process of setting up a new internal web server to provide ftp services for our clients. To make sure we know of a new file arrival we will be providing an html form for uploading. Some of our clients will be using Macintosh and we need to use the same platform for reliable output. The html form will email us on upload with file information. I am aware that the transfer isn't ftp but it is easier this way for some of our clients. Our new internal server will be using OS X Server. We are accomplishing this now by providing instructions and links to freeware Macintosh file encoders but would like to automate the process.