Posting this from the MorphOS 2 demo I just installed on my Efika.
I have a Radeon 9200 AGP. It bumps into the wires coming out of the ATX power connector. Oh well.
I used a Transcend 4GB USB flash drive to hold the boot image and the downloaded ISO.
A couple hints:
1) when typing the boot command at the smartfirmware prompt, the image filename is case sensitive (being a Windows user, I'm not used to that B.S.)
2) you can't install MorphOS onto a FAT partition (it won't work worth crap). Change the harddisk from MBR to RDB and use FFS (probably some other stups work too but that is what I'm using)
This seems like a nice system after all, too bad there's no sound yet.