Well I took the plunge and bought the item (see link below) and it works. I have all 8GB of a 8GB SDHC card working in my CF card slot. Only very minor hassle is removing it from the slot (have to remove the SD card from its slot in order to grip it from both sides). Otherwise it works a treat!
JOBO - mini Adapter für SD/SDHC auf CF (SE9108)*Secure Digital (SD) / SDHC auf Compact Flash (CF)