bigdaddave: Nice article, but I don't agree with any of it.
It's daft to have one ginormous catalog for eveything and there are much simpler, easier ways of both importing and organising pictures.
One large catalog. Mine is >350,000 images already. Running well on Win7/i7 machine. It takes me seconds to find the images I need, without going thru multiple catalogs. I have a separate "travel" catalog on my MacBookPro, which I export as a catalog and import into the main one once I'm back at the studio. I then delete it off the laptop. Works like a charm.