Hi,
I made a little lib to easylly write text in OpenGL (using textures, no
blit is made for rendering). It is derived from DFont and is compatible
with fonts in SFont format.
It has not been intensively tested yet but it works in my project 
You can grab the source here :
http://www.choupette.org/flupke/mySite/view_site.php?id=10
(sorry the page is in french, I don’t have time to do the translation,
but the source is in english :p)