Creating Contact Sheets by selecting images in sub-folders

Question

I'm new to scripting, so not sure whether this is within the realms of possiblity, but hope that there's an expert out there up to the challenge!
My goal is to develop a script to automate the process of creating contact sheets for each pupil of a school photoshoot.  The folder structure being used presently is:
1st level folder:     School name (e.g. "Southbridge School")
2nd level folders:     Class teachers name (e.g. "Smith")
In each 2nd level folder (i.e. representing each class) there are always 3 images per child (post processed, so ready to convert to contact sheets).  The image numbers run sequentially, so the first 3 image numbers in the folder are of the 1st child, the next 3 are of the 2nd child, and so on....
The script I'm looking for would allow me to point Photoshop to the 1st level folder and then automatically create a contact sheet for all children 'found' in the sub-folders.  To do this the script would need to do the following:
Taking each 2nd level folder in turn, recognise each 'child' is represented by 3 consecutive images - and starting with the 1st 3 images in the folder create a contact sheet.  Then, move on to the next 3 images in sequence and create the next contact sheet, and finish after it completes the final 3 images in the folder.  Then, move on to the next 2nd level folder...
Create each contact sheet with the 3 images in colour and then the same 3 images in black and white (so 6 images per contact sheet), including the image number under each and a copyright watermark
Save all contact sheets generated from all of the classes all together in 1 new folder at the 2nd level called "Contact Sheets"
Give each contact sheet a unique name in the format "<Class teachers name> - xxx"   (e.g. "Smith-1", "Smith-2" etc...)
So, are there any Photoshop masters out there up to this challenge?!  Your help would be greatly appreciated because the learning curve on this one looks v. steep!
Alternatively, if you can think of a better way of doing this I would also be keen to hear!
Thanks

Answer 1

Awesome! I didnt even know aperture could do that
Now another quick question on this topic, if im using RAW files, does aperture need to convert the file to jpeg or tiff (like it does if you export version as jpeg)?
If it does, that may be a problem as it takes forever for aperture on my macbook to convert raws and save as jpegs, like a good minute or two per photo, and if i have 200odd photos....not good, people will crack it waiting and leave.
Or does it print as raw? Cause im pretty sure my printer (or any printer) can not print raw files. Will try it tonight on my printer but a heads up will be useful.
I could just shoot in hi-res jpeg, but id rather shoot raw incase they want a large poster size print etc.
Thanks.