I've just got this combination on m Mac and have to admit there's a couple of things I don't understand (or haven't set up right). I've not managed to find any information about this in the LR sticky, so forgive me if it's a repost.
I've managed to import my shots fine into LR (direct from the CF card) and I'm happy enough performing LR RAW/Browsing activities and sending the file to CS3 for further editing.
1) I see that LR will only send a TIF file to CS3 (so why can't it send over a CR2 file and XMP file like ACR does?)
1a) TIF files are huge. CR2 + XMP is a pretty small overhead, why am I stuck with TIF. If I delete the TIF, do I also delete the metadata?
2) Once I save the edited file (as jpg) from CS3, why isn't it visible in LR. Thinking about it, why can't CS3 save the jpg into LR (or use the Check-in feature)?
Or maybe LR/CS3 doesn't suit my earlier workflow. In which case, what's yours?

