Mohtalim

I found their work remarkably well-done, especially for a non-profit fan-work. I think a lot of adaptions could learn from the following:

Naruto Shippuden: Dreamers Fight -- Part One
http://www.youtube.com/watch?v=OAl2DWNukbs

Official Web Site: http://www.thousandpoundsaction.com/
"Telling compelling stories through violence. Sometimes dialogue is involved. Story and relationships are always involved."
Members: http://www.thousandpoundsaction.com/members/

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Edit: Renamed since I'm adding more videos!
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Youtube Channel
http://www.youtube.com/user/RivenX3i/videos

• Ultra Combos #1 - Thousand Pounds
  http://youtu.be/i3Sm444_zOw
• Ultra Combos #2 (Femme Fatales) - Thousand Pounds
  http://youtu.be/qUI4CZZcT7A
• Ultra Combos #3 (Final Round) - Thousand Pounds
  http://youtu.be/UR5wXrak2k4
• Tag Match
  http://youtu.be/S3X75iJLogI
• Street Fighter x Tekken Announcement
  http://youtu.be/1xZUG7b7UHk
  "We're gonna fight, aren't we?"
  "Yep."
  (also announces that Capcom is producing a video of theirs)

More Videos Here (such as Street Fighter: Beginnings End - Thousand Pounds, Arkham City Inspired Test, etc.)
http://www.youtube.com/user/RivenX3i/videos

Updated.