Has anyone out there tried plugging a different CF memory card (e.g. 1GB IBM Microdrive) into an iPod mini? As other threads have noted, the Hitachi 4GB Hard disk costs $499 on its own. For those of us who have decent sized microdrives for a digital camera, being able to upgrade to a 4GB Microdrive *and* use our old cards to get a smaller-capacity (e.g. 1GB) iPod mini for $249 is quite an attractive deal... (For those who haven't seen it, here are photos of a gutted iPod Mini).