Remember the pinouts posted on bodnar's site are for a completely different model - the ATI-based eMac 800Mhz+. The nVidia-based eMac 700/800Mhz models are different beasts completely.
I was given two eMac 700s and set about doing the same thing (I had a vision of mounting a 17" LCD behind the existing white bezel, and putting the eMac guts behind it), but the VGA pinouts are incomplete (MacRumors has a big thread on this and includes some incomplete 700 VGA pinouts). You can't use a mini VGA --> VGA adapter as this results in washed out colours. Got it to boot off ATX easily though by making a harness out of a molex connector.
Good luck,
JB
I was given two eMac 700s and set about doing the same thing (I had a vision of mounting a 17" LCD behind the existing white bezel, and putting the eMac guts behind it), but the VGA pinouts are incomplete (MacRumors has a big thread on this and includes some incomplete 700 VGA pinouts). You can't use a mini VGA --> VGA adapter as this results in washed out colours. Got it to boot off ATX easily though by making a harness out of a molex connector.
Good luck,
JB