Access hundreds of high quality Photoshop tutorials on YouTube from Lynda.com.
Simply type lyndapodcast into the YouTube search field and a subcategory list will come up.
There are 1,800 videos from Lynda.com and 187 of them are under the category of Photoshop.
There is lots to look at.
Maybe a link is a good idea. :-)
Here are two more links to the list of lyndapodcast on YouTube.