I get most of my texts from
http://www.dafont.com .
This is how to access the texts once you download the ones you want:
Get on administrator if your not already.
(I'm guessing you're using Vista or XP?) Open up your Control Panel from the Start menu.
If you are in Display view, then go to the sidebar and go into Classic view. I don't know how to get there from display view.
Find Fonts in the Control panel.
Once in the Fonts folder, Go to File > Install New Font...
On the lower part of that window, find the directory you put the texts you want to add.
Once found, in the table above that, it will find texts in that directory ready for you to install. Press the install once they are all selected (using ctrl+click)
You will now have the texts installed. They don't seem to pop up instantly in the Photoshop text list, so I normally reboot the computer before using them.