Web locations for some Photoshop processing tips and resources:

Jerry Lodriguss        
                       A Beginner's Guide to DSLR Astrophotography (CD Book) http://www.astropix.com/BGDA/BGDA.HTM                       
                       A Guide to Astrophotography with Digital SLR Cameras (CD Book)http://www.astropix.com/GADC/GADC.HTM                        
                       HDR Combining  (Free) http://www.astropix.com/HTML/J_DIGIT/LAYMASK.HTM                      
                       Recording and Enhancing Star Colour  (Free) http://www.astropix.com/HTML/J_DIGIT/STARCOLR.HTM

Neal Heacock 
                       Making Images Pop  (Free) (This takes you to a pdf file) http://tinyurl.com/7jqxzly

Nik Szymanek
                       Processing in Photoshop http://www.iankingimaging.com/show_article.php?id=9

Web locations for some Photoshop Processing videos:

Adam Block's Instructional DVDs: (not free)
                       Making Every Pixel Count in Photoshop http://www.caelumobservatory.com/video/dvd.shtml             

 DSLR-AIP Walkthrough Videos (free):


Ken Crawford's Videos (free) including the following                      

                        Introduction to Masking
                        Digging Out the Details
                        Intro to the HDR Toning Tool in Photoshop CS5
                        Solar Image Processing - Full Disk
                        Clipping Masks and Colour Mapping for Narrowband Processing
                        Depth of Field Processing and Processing Tool Box
                        Multi-Strength Decon Layer Blending

Louie's Videos (free): Including the following         

                        Boosting Star Colour
                        Lab Colour for PS CS4
                        Noise Reduction Masks
                        Hues and Contrast
                        Star Repair
                        Golden Curves
                        Noiseless Colour
                        Levels and Curves

Tony Hallas' DVD (not free)

                        EZ CCD DVD (volumes 1 - 5) http://www.astrophoto.com/

Warren Keller's videos (some free) http://www.billionsandbillions.com/


            Some methods and references for combining Ha and RGB:

For Photoshop:

         Neil's method of adding Ha to each of the colour channels (from his Make Images Pop slide show starts on slide 45): http://tinyurl.com/7jqxzly
         Robert Gendler's techniques (also contains a good explanation of some of the issues with combining Ha and RGB): http://www.robgendlerastropics.com/HARGB.html
         Starizona Method 1 and Method 2: http://starizona.com/acb/ccd/software/ps_hargb.aspx
         Don Goldman's technique (4th section): http://www.starshadows.com/documentation/index.cfm?DocID=3
         Tony Hallas' method of using Hue/Saturation colourize and lighten mode: http://www.geoandpat.com/Ha_plus_RGB.html
         Dean Rowe's method using Colour and Luminosity groups: http://tinyurl.com/m3dnu54

For Images Plus:

          Mike Unsold's Challenge 12 Workflow Tutorial: http://www.mlunsold.com/process/IP5/CH012/CH012.html

For Pixinsight:

          Ha/RGB combining with Pixinsight: http://pixinsight.com/tutorials/narrowband/theory/en.html