My 3rd SFM short, created for "Critter Week." One thing lead to another... it may be funny...
I did this in 1 day. But it was after 7-10 days on my previous SFM vid. It's especially tough to learn animation, but what was also difficult was the mere export from SFM, import to Premiere Pro, Export from Premiere Pro, and conversion for Youtube to limit banding. This doesn't even include the workflow for color correction, which involves a lot of extra steps, which I haven't done yet, but know how, and involves After Effects between SFM and Premiere Pro.
If you're interested in participating in Source Filmmaker, there are many resources that can be acquired on http://facepunch.com/forumdisplay.php?f=412
Obviously the tutorials by Valve can be found by searching Source Filmmaker Valve Tutorials in Google.
I'm apart of the OSFM - Open Source Filmmaker Group on Steam. Check us out!
Let me know if you have any questions!