sgatz: on the edit / create post screen you should have a "Facebook Status on Your Timeline" post meta box. Inside the post meta box you can compose a custom message displayed alongside the URL summary on Facebook. You can mention a Facebook friend or Facebook Page in this field using special mention tagging syntax. The special syntax becomes a link to the mentioned person or page on Facebook and may trigger Facebook alerts and appear in the mentioned person's Timeline.
As you type into the input field in the "Facebook Status on Your Timeline" meta box press the "@" key and start typing your search: "@Scott." You should see a list of friends named Scott combined with pages matching Scott. Select yourself from the list. Your search term is replaced with "@" for special processing by Facebook.
You can also directly enter a Facebook ID or URL using the same syntax; the typeahead helps find those values and place them in the message for interpretation.