Best site in my opinion for voices is:
www.blackmagicgames.com/
Download the male Grunter. Its the funniest for me because all he does is grunt like a caveman. Which is perfect for my 19 INT-WIS FMT. You need to download the mp3towav converter from that site also if you don't already have one. I recommend it because its real easy to use. The site also has some good portaits.
Also, try:
www.kirith.com/ for excellent portraits.
There's also a place called the Space Spider, another excellent site:
http://members.lycos.co.uk/spacespider/