multi-computer photo editing workflow?

Does anyone have any suggestions for a good workflow for editing a large set of photos using at least two and probably three laptops? It should be able to do f-spot-like tagging and favorit-ing of pictures, as well as cropping, simple color adjustments, etc. Goal is for Krissa and I, working together but often on our own machines, to turn 5,000 unedited honeymoon pictures into a smaller, organized, cropped, etc., set of pictures.

I’d love to just use f-spot, but as best as I can tell there is no way to share an f-spot collection (files+metadata) across multiple machines/user accounts- happy to be wrong on that count if possible.