Question about Facebook

It's not entirely possible for your friends page to post to your biz page without being seen as the administrator. There's some screwy workarounds for it, but its quite a bit of work that could easily be rectified by just getting another account (which of course FB doesn't condone)
If you have a second acct.. I would make that personal one the admin, and your regular friends one a member of the community. This way you can post as the biz and a member.

Hope that helps.

When you comment on a Facebook page and are logged into Facebook with a user account that has admin rights to the page, wall comments will show as coming from the "page" and not your username. Facebook does it this way so that the page can be completely separate from any user accounts.

This is a challenge for pages that have multiple admins running them. Most businesses I know that want to acknowledge different admins on their Facebook pages have their admins leave their initials on every wall post so folks know which admin left which message.

In theory, if you logged into Facebook with a different user account that doesn't have admin rights your wall comment would be that username and not the page name. But they cookie your browser so that might not work either. Plus I know they do track IP addresses because when I've logged in from an unusual location with my laptop when traveling I've had to answer a security question to verify I was really me so I don't even know if opening the other user account in a different browser (say IE & FireFox, for example) would work or not. But I suspect it would.

Keep in mind, though, that creating more than one personal profile is a violation of the Facebook TOS so I don't recommend you go that route. If you do it anyway you risk getting your accounts shut down.