Adding Links Only For Admin Users

Hi
I have a user group called 'admins'. They are the only group that can delete records. I am not using dynamic permissions.
This works fine i.e. the 'delete selected' button only appears for 'admins'.
What I want to know is how to add other buttons next to this or simple text links (maybe just to external websites) that only 'admins' can see. In other words, it is a matter of hiding them for everyone else.
As an example can you tell me how I would add a text link to www.asprunner.com that only appears next to the 'delete selected' button for the 'admins' user group?
Thanks.