Darren,
Good question this one! Sounds like they intend to print their publication on billboards as opposed to a newspaper with those file sizes!!!
For me file size is around the 400-500kb mark (depending on ISO mostly).
The paper I freelance for insist on the following criteria:
No cropping of original image
No Sharpening (they have an algorithm which they apply pre-production which, to be fair to them, is brilliant. Then again for the reported cost of those algorithm, I should think so too!!)
Only Auto Level Adjustment
This all struck me as a little strange at first however it does allow for them to crop the photos to fit their requirements, so can see the logic. It also makes sure that I get everything spot on in camera as there is very little that I can do after the event in photoshop. So strangely its making me a better photographer! As for how the cropping changes the intergrity of the photograph, so far I haven't disagreed with the way they have cropped any of the photos - so fingers crossed it continues!
So effectively my work flow is: to import into photomechanic using the ingest function(at this point I change resolution to 150), select and caption images then batch process them through Photoshop, doing auto levels and then saving as JPEG high quality (I think it equates to JPEG quality 8 -10 in PS - am away from computer at mo and can't quite remember the settings!) then back to Photomechanic and FTP them across.
On Sportsshooter, Marc Atkins posted about this topic too:
http://www.sportsshooter.com …ge_display.html?tid=22310
Hope that this helps - I shoot on a 1d Mk1 so the file sizes may be a little smaller than on say a Mk11. If you are finding that the file sizes are still too big, maybe take the JPEG quality setting to about 6-7 in PS).
Good luck, would be interested to hear their logic for file sizes that large though!