Looks like I answered my own question regarding the CF slot:
 | Quote: |  | | | | | | | | | | Integrated Plug&View™ Compact Flash I & II Slot7 Transferring pictures from your camera to ZEN Vision W has never been easier. Simply slot in your camera's Compact Flash (CF) memory card and lets ZEN Vision W do the rest. The optional Compact Flash card adapter supports all your favorite memory card formats such as SD, MMC, Memory Stick and more. | |  | |  | |
I do wonder about the USB host issue. It's listed for the Zen Vision M, but not the W. It's not a dealbreaker, but it would be nice.
Did you get the 30GB or the 60GB?