Hey!
I've tried to change HDD with a IDE Flash adapter, I used both Flash CF and SD cards...I couldn't succsed, the machine didn't saw the cards.
I'm pretty sure a SDD IDE hdd should work..as long as got the same pins like the original 2,5 HDD.
Let us know the resuslts.
Check this ... http://www.mesanet.com/diskcardinfo.html
Vio