They are a bit of a pain in the ass to install, and can also be a pain in the ass to get working a decent speed. The easy option is to either grab an IdeFix Express (>4.5 mb/s) or wait for the new SATA enabled IdeFix Express which should be even faster 
Does anyone know a rough ETA for the SATA-Fix Express boards? I'm holding off on buying a FastATA MkIV but the wait is getting tiresome..........
