Most PC gamers fondly remember the original StarCraft campaign -- strategic but packed with action and atmospheric as hell, it's still one of our favourites. Modders being modders, it was inevitably going to be remade with the StarCraft II editor, and it has.
Modders Ultraling, Maverck, and Jones313 have pooled their efforts and recreated the Terran campaign -- including the tutorial and soundtrack -- in the SC2 engine, releasing it late last week.
The word from fans is it's fantastic and faithful, though there are a few notable changes, including the addition of medics and an overall increased difficulty (not too hard, though), among others.
Feel free to give it a shot via the source and tell us what you think. See here for the finer details and install instructions.
If you're hungry for more, check out the StarCraft 2 - Brood War mod for multiplayer fun, also from Maverck.