Have you tried to see if Photoshop already sees them. Cmd/Ctrl-T to select the Type tool, then look up to the Options bar and you should see if there is a name field for fonts.
They do have to be installed on your computer through your OS system and active, but I expect if you can see them in PSE, you can see them in PS. If not, let us know your OS and if you're using a font manager.
Just so you know, Photoshop can "see" all the fonts installed on your machine. It will present them all in the Font Face dropdown, sorted by script-family. If a font is missing from that list then either a) it is not available to all applications on that OS or b) it is a class of font that Photoshop doesn't support such as Type 1 font in Arabic/Hebrew or AAT fonts. Heck, thanks to Typekit, you can also access like 3000 fonts from Adobe's font library.