The Eeprom reader I made worked first time so I have the eeprom.bin file now. I just held the pins on the reader against holes 13 & 14 on the LPC pin header, I have version 1.1, I checked that it wasn't version 1.6 before I did it.
If anyone makes one I think testing it with PonyProg is a good idead, it checks the port and shows if there is a working device fitted. Could save a lot of headaches. Checked the eeprom with LiveInfo and it has the correct serial number for my Xbox so it should be correct, fingers crossed.
Thanks to Unicrom for the easy to follow instructions.
I ordered a bigger HDD for the Xbox, 250gb WD so hopefully that will work.