Two great sites to search for technical info when you get stuck or stumped:
http://www.CreativeCow.net A resource for creative professional. Tons of forums and I see they have a new video section.
http://www.2-pop.com Geared toward Final Cut Pro and digital media users, but chock full of great information
http://www.marcofolio.net/photoshop/ultimate_photoshop_design_resources.html Or if you just google something like, I don’t know “photoshop resources” you get a ton of links of things like this guy. A photoshop junkie with a boat load of information.