If you boot in Target Disk mode, you'll need a Firewire cable to connect the two Macs.
Perhaps a more complicated, yet manageable way to transfer files is to hook both Macs up on a network. (Make sure they are either attached to one another with a single Ethernet cable or that they both have an Ethernet cable to your home internet network). On the eMac, turn "File Sharing" on under the "Sharing" pane in System preferences. Then go to the PowerMac and on the desktop use K (cmd-k) to access a shared computer. Type in "afp://
Karen's -Computer.local"
Blahblah's-computer is the name that you will find on the eMac at the top of the "Sharing" pane in System Preferences. You take your computer's name, change all spaces to hyphens, and add ".local" to the end.
Now on the PowerMac, after you have typed in the eMac's name and hit "Connect," a finder window should appear with "Connect As" at the top right. Click that and type in your eMac account's name and password, which might be something like: "Karen" with a password of "Dandelion123." It might ask you what you want to see. Account info will let you drag things from things like Documents to Music, while the Hard Drive will let you take things like Apps.
I know that was a long an complicated explanation, but they made it quite easier with Leopard and up. I don't know which OS you're using, but please ask if you have any questions.
If the eMac is not allowing you to delete large files, try throwing them in the trash, and holding down "alt/option" while you tell it to empty the trash. Some files are protected and pressing this key overrides the protection and deletes them anyway.
Hope this helps. I know not all of us have the right Firewire cables . . . .
Message was edited by: Panther Mail & .Mac