Hi
don't worry about the microdrive- it's very reliable.
I have a fuji 602 (SLR shape) with microdrive- works fab- stores around 300pics at 3MB resolution or over 1000 at lower res!
When I got the camera about 18months ago, the microdrive retailed at £300 alone, so I waited and bought one this summer from
www.scan.co.uk for £120. Don't know if it's fallen any further in price.
BTW,you can use the microdrive to store files for your PC. I use a USB card-reader and by plugging it into the PC and can then write to the new "E" drive (microdrive) then transfer files elsewhere.
Hope that helps!
RKB