Backup and sync

I use a win7 desktop and a MBP running Mountain Lion to process my pics.

Struggling to figure out how to sync the changes made on both the machines. I use a hard disk attached to the desktop as the primary save location. I have 2 external disks that I use as backups.

I copy the directories I am working on to the Mac as I tend to work on both the machines.

Should I leave all my disks in FAT32 format for both the Mac and windies to write to them? How do you manage a win7 / Mac OS combo?

There's software that enables OSX to write NTFS. OSX can read NTFS out of the box.
There's also software that enables Windows to read & write HFS+ formatted disks.

http://macntfs-3g.blogspot.nl/
http://hints.macworld.​com …p?story=2009091​3140023382
http://www.makeuseof.c​om …fs-mac-os-review-rewards/
http://www.paragon-software.com/home/ntfs​-mac/

I'd avoid FAT32 like the plague.

Can't help much with the information provided, we need to know more.
- What software do you use for processing?
- Can you centralise your processing on one machine? If not, why not?
- Are your images on the external disk? What interface (Sata, USB2,etc) do your external disks have?

I use photoshop for my processing - both on the desktop and mbp. The desktop was my primary processing machine thanks to the bigger screen. The mac was primarily used when I was traveling or wanted to work on the pics watching TV etc.

The primary storage is a 2TB external hard disk connected to the desktop. The current processing set - I copy it to the mbp. I have 2 other 1TB external hard disks that I use as backups.

Right now, all the external hard disks are NTFS. To get around the mac being able to save the processed output to the hard disk, I installed VMware and win7 and use a program called syncback.

It just becomes an extra step to have to copy the files through windows on a mbp. Was wondering if there was a more elegant way to do this.