What Mixture says, if you are going to have a lot of photos, Lightroom, (or equivalent), but Lightroom is one of the standards.
Do a search for tutorials on your program of choice and if you like the idea of Lightroom look for Julianne Kost's tutorials. They vary from basic to advanced. She is an Adobe staffer and is excellent as far as I am concerned.
In addition to organizing your files, Lightroom is also one of the best editing programs around.
I use Lightroom and CS6, (AKA Photoshop), I find that I can do the bulk of image editing in LR with trips to CS6 mainly for editing at the pixel level
or collages, layers etc. but LR does the bulk of my editing.