If you are looking for a way to keep your psd, ai, etc. files mirrored between your two towers, you could use something like Dropbox: https://www.getdropbox.com/
If you were to move your client elements folders into your dropbox folder, the application will sync the most recent version across all computers. So if you make a change at home or work, the new version will automatically get copied to the other location. You could even keep your FCP and aep project files in there as well.
I have been using the free 2GB account, so that would limit you to supporting elements, but you can get 100GB accounts, so in theory that would cover any current renders you are working on. Definitely something to test out before diving in too far, but it *seems* like it should work!
2 x3Ghz Quad MacPro
9 GB RAM
Mac OS X 10.5.5
QT 7.5.5
FCP 6.0.5
AJA Kona 3 (6.0.1 drivers)
G-Speed XL 12 RAID