|Is there a way to limit server access to those 2 laptops or am I getting out of the easy setup arena.|
If you want to limit, or allow access using the wireless, then you're definitely out of the easy arena.
It's worth noting, access like this is normally controlled through user/group accounts and the ACL's on shares on the actual server. Which is to say, if you don't wish a certain user to access a certain share, you don't add their user account, or any groups they have membership in, to the ACL for that share. Alternatively, you could use an explicit "deny" permission on that share but those have a way of biting your behind later on in life so it's better to restrict by ensuring the user has no access.