I wonder if I can forward the gmail to my site then grab it from there....
Yes, you should either be able to auto forward the mail or set it up as a POP within Gmail (somewhere in the Settings there is an Accounts tab). In the latter case you should ba able to also use the Site5 account for sending stuff; I'd have to test it to ensure that in that case the GMail information is not sent as well.
EDIT:
In fact, I just logged into my GMAil and send you a mail trhough my Yahoo account. Let's see if you can find my Gmail address anywhere within that mail.
If you need help setting up either side of this (GMail or Site5) let me know. I could do it on my end, write down the steps and give to you.