Could the Mac machine be networked locally to a Windows machine and the 200GB of data written to an external NTFS drive (preferably in an enclosure over eSATA or usb3) connected to the Windows machine? The NTFS HDD could then be posted/couriered as a fragile package to the remote Windows user.
Unfortunately I have no experience with networking Mac to Windows and can not advise the folks regarding this issue...
I assumed from earlier replies the Mac end had no access to a Windows box.
Indeed one could network a Mac and Windows box together, can patch them directly to each other if they both have Gbit network cards. Either computer can be doing file sharing. It's ok to leave things on auto private addresses (169.254) for this kind of networking even if Windows moans about limited connectivity it is not a fault just means there is no router.
A) Easier: Turn on Windows sharing on the Mac for the folder containing the files, then from the Windows machine, open that networked folder and copy to external drive.
B) Turn on File Sharing on the Windows box and Share the whole external drive letter. From the Mac connect to the Window share and copy the files to it. Probably best to stop sharing the external drive before doing Safely Remove.
If it's Windows Home and it gets too fussy about the right user/password, could install FileZilla FTP server on the Windows box and share the drive that way. Some versions of Mac can't upload to FTP without additional (free) software.
prompt $P - Invalid drive specification - Abort, Retry, Fail? $G
prlzx on n e w n e t: ADSL2+ / 21CN at 2.5Mbps / 800k