A fellow named Ross Herewini posted on DVInfo today, announcing a line of SD card to ExpressCard adapters that are purpose built to fit in the EX1/EX3 cams. One of the downsides of the previous solutions was that you had to leave the cardslot door open, potentially exposing the camera to dirt, etc.
He’s not taking orders quite yet, but it looks like they’ll be about $50. Throw in a $31 16gig Transcend SDHD card. Pocket the $700 savings over SXS cards.
Only downside is that you can’t overcrank beyond about 40fps, but you can always keep an SXS card around for that.