You could use a script, here is an example, it will change ALL text layers to the selected font.
This was writen for PSCS2/3
Save the code as FileName.jsx and to run it:
File-Scripts-Browse to where you saved it and select it.
Select your font and click ok.
Paul.
//////////
#target photoshop
function main(){
dlg="dialog{text:'Script Interface',bounds:[100,100,400,230],"+
"panel0

anel{bounds:[10,10,290,120] , text:'' ,properties:{borderStyle:'etched',su1PanelCoordinates:true},"+
"statictext0:StaticText{bounds:[20,10,240,30] , text:'Select Replacement Font' ,properties:{scrolling:undefined,multiline:undefined}},"+
"dropdown0

ropDownList{bounds:[20,40,260,60]},"+
"button0:Button{bounds:[20,70,120,90] , text:'Ok' },"+
"button1:Button{bounds:[150,70,250,90] , text:'Cancel' }}}";
win = new Window(dlg,"Change Font");
win.center();
for (var i=0,len=app.fonts.length;i<len;i++) {
item = win.panel0.dropdown0.add ('item', "" + app.fonts
.name);
};
win.panel0.dropdown0.selection=0;
win.panel0.dropdown0.onChange = function(){
Selection= parseInt(this.selection);
}
var done = false;
while (!done) {
var x = win.show();
if (x == 0 || x == 2) {
win.canceled = true;
done = true;
} else if (x == 1) {
done = true;
var result = valiDate();
if(result != true) {
alert(result);
return;
}else
{
fontName = app.fonts[Selection].postScriptName;
findTextLayer(activeDocument);
}
}
}
}
main();
var Selection=0;
var fontName;
function valiDate(){
return true;
};
function findTextLayer(obj){
if(obj.artLayers.length>0){
for(var z = 0;z<obj.artLayers.length;z++){
if(obj.artLayers[z].kind == LayerKind.TEXT) {
obj.artLayers[z].textItem.font = fontName;
}
}
}
if(obj.layerSets.length > 0){
for(var l=0;l<obj.layerSets.length;l++){
findTextLayer(obj.layerSets[l]);
}
}
}