Here's lots of info on the Half-Life vox sounds...
http://www.planethalflife.com/studio...sentences.html
http://tf.valve-erc.com/kbase.php?id=23
http://www.karljones.com/halflife/words.asp
You can use the client command "speak" followed by the words you want spoken with commas between them BUT NO SPACES!!!, like this...
http://www.ticclan.com/tutorials/mus...-commands.html
botman