Other world computing has some 2.5 and 3.5 enclosures, what is nice is that they also include eSATA connections on them, so if you did have a controller card in th emac, you could use them via SATA, but if not, then via firewire or USB.

http://eshop.macsales.com/shop/firewire/on-the-go

http://eshop.macsales.com/shop/hard-...te-al-pro-quad