Also, one more fic rec (or, well, five more, but they're all by the same author and follow the same story line) for the barrel!
Yeah, so I read these all quite awhile back, but I just never got around to reccing them. Set in the Stargate SG-1 'verse, but any number of historical detours into Metho's past are to be expected.
Changing of the Guard by Ecolea. Stargate SG-1/Highlander cross over, first of the Changing of the Guard series. Through a series of... events... the Air Force becomes aware of Methos and his Immortality. Needless to say, they really don't wanna give him up after that. Not that it matters much, because he really doesn't seem to begrudge his would-be employers much, though due to the aforementioned... events, he really doesn't much care for Anise.
Also, here's the authors summary, which is way more exciting than mine:
Methos' plans for a little Research and Recreation take a decidedly dangerous turn when the Air Force discovers he's an Immortal. Can he survive the present, confront his past, and save Earth's future all at the same time?
There are also an additional four stories following the same storyline that are equally as good, with a possibility of more eventually:
Changing of the Guard 2: The 9th ChevronChanging of the Guard 3: Be All That You Can BeChanging of the Guard 4: The Road to HammelcarChanging of the Guard 5: Terms of Engagement Summaries are in the header of each story.
Right then. I shut up now.
ETA June 2010 - The links above don't seem to work anymore, and I'm too lazy to re-link to all five stories. Instead, I'll direct you to the
Highlander Fic Archive to do a title search for "Changing of the Guard". All five stories are listed about halfway down the page under "C-Cld".