I have SDP-H200 and successfully using it with Mac-mini G4.
May be info on Panasonic site is outdated, but my camera came with ImageMixer for Mac. It is not very user-friendly software, but with 3 step process I am able to move my video from camera to Mac.
-- Using ImageMixer to export clips into computer as *.mpg files
-- using VLC to transform it into MPEG-4 (or MP4) format
-- import into iMovie or Final Cut.
It is multistep and slow process, but it works. I wish to update to Leopard with iMovie 08 and hope it will support my camera better.