5 camera's to 1 Mac

For an upcoming project, I'd need 5 camera's to shoot the same subject simultaneously from different viewpoints.
Camera doesn't matter that much, since they need to be rented anyway, but choices are a 1D series (1D2 or 1D3), 40D or G9.

I think syncing the camera's won't be much of a problem (either PW's or Canon's wireless remote), but what I'd like is to shoot tethered.
Ideally I'd like to be able to view the five shots side by side on *one* MacBookPro.

I don't think (but am not sure) that would be possible while 'hard wiring' te camera's to the Mac. (using FW or USB2, depending on camera used).

It seems to be possible to have all camera's 'log on' to the same FTP server using WiFi however. Does anyone have experience with this?

Could I then use DPP or LR to 'monitor' the FTP folder, thus getting the 5 images on screen after they are shot?

Any other brilliant ideas to get this to work?

This kind of question is probably something you'd want to ask on sports shooter or DWF. It seems like something a very experienced pro or a very bored nerd would work out

Hahaha, good thought. What's "DWF"?

www.digitalweddingforu​m.com - just beacuse there's some really experienced people who do weddings and all sorts of other things.

Okay. Sportsshooter seems to be not an option because of the joining requirements...
I might try DWF, but I wouldn't mind anyone chiming in here

Rene, I am thinking the new grip (WFT-3a I think) with the 40D would be a great choice for this, but I don't know how readily available all that would be. They have the ability to connect to a drive either via wireless or through an ethernet connection, which you could then point your software to that folder. I am not sure about this though, this is just me thinking out loud.

HEre is a blurb from DPReview about the grip:

And the link: http://www.dpreview.co​m/reviews/canoneos40d/​page3.asp