QUOTE(lincoln81 @ Sep 11 2007, 10:29 AM)

No, my husand is the one petitioning for me so I can't just write the letter and sign it. Also, I thought about having him write and sign one, scan it and email it to me but then I wasn't sure if that mattered since it wouldn't be an original. I guess I'll just mail all of our stuff back to him or have him mail me the letter. Thanks for your help guys

You are making this process much more difficult than it needs to be... take a deep breath, all will be OK....
First.. The requirements of the filing are stipulated in the instructions to the form and a cover letter is not listed and therefore is NOT required.
Secondly, the only original documents required to be submitted in the filing is the petition itself and the g-325a's (due to the need for a signature). All other documents copies are acceptable.
Based on the above I think you have a road map to solve your dilema