Hey everyone, i just found about this gem of a channel.
One guy is making SFM movies within the Black Mesa, following the games story with amazing details and animation. Plus some new touches.
1st episode: Half-Life: Anomalous Materials [SFM]
2nd episode: Half-Life: Unforeseen Consequences Part One [SFM]
I think the animations is smooth, though a bit unfinished and rushed.
But the story and added details are great!
hahaa that is pretty cool!
I plagarized this and posted it on the steam forums, crediting you for the find.
Good stuff.
Watched the first episode with a smile on my face. Great little details as well, like Gordon fist bumping Eli. Great stuff! 
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.