I've considered doing this with http://www.youtube.com/watch?v=JT3rD3JSFLc but it's still a bit too much. Looks awesome though.
The Overgrowth project is fascinating. The amount of attention they're paying to details, the combat system and its fluid animations... Alpha release after alpha release for a long time, but still barely anything done with regards to an actual game with a story or logical progression. It's just spawning in a random open location in which you have to spawn the enemies yourself with the editor.
The weekly videos are usually pretty interesting to watch. The combat system is great and keeps getting better.
http://www.youtube.com/watch?v=PkypXn5S4Rg&feature=plcp&context=C37d1256UDOEgsToPDskKyMNQIyqcSEOt8kbb2z96m