Troubleina said:Unless someone else knows different, you cant use an external.
I do use a go-flex wireless, but i have to download my ipad pix to my mac, then put them on the go-flex. Once there i can connect to the go-flex wirelessly and see my previously saved content. Its a lot of moving around data though.
Have a look at Gabriel1's thread in the iPad connect/Network Attached Storage section. He has done a great deal of work on this and it sounds ideal for your requirements.