Sure, there's tons right here at SimplyCG!
Go down to the video tutorial section and check them out! Here's one Zach made regarding rendering passes out of Maya!viewtopic.php?f=31&t=2126
And here's one I made on super simple compositing techniques in AE.viewtopic.php?f=31&t=1746
For the rest of Zach's, check out the video tutorial section, and the rest of mine are there too.
There's also a compiled list with descriptions and pics here at my website:http://www.mackdadd.com/html/visualfx.html