Features (From Their Website):

Superior-quality voice changing software technology
Advanced voice-learning algorithms for best quality sound
Background cancellation and noise elimination
Full integration with online games and chat programs
Low bandwidth and CPU usage for excellent performance
Additional voice changing packs
Extra Sound Effects Packs
Backgrounds - add ambiance to your voice changing
Beautiful themed skins
Add your own sounds effects and backgrounds
Advanced vocal tract filters for unlimited tweaking
After Effects: add environmental effects to your voice
10-band customizable graphic equalizer
Quick Voices: switch your voice with a single keystroke
Quick Effects: Play any effect with a single button
Audio Alarms: announce the time or play a clip.
Morph audio files or record your voice to a file.

Compatability:

MorphVOX Pro voice changing software can be used with all online games including World of Warcraft, EVE Online, Second Life, Lord of the Rings Online, Everquest, Counter-Strike, Battlefield 2 and many more.

It also integrates with VoIP and Instant Messaging programs such as Skype, Ventrilo, TeamSpeak, Yahoo Messenger, MSN Messenger, AIM, XFire, GoogleTalk, Roger Wilco and more.

In the studio, MorphVOX Pro integrates with multimedia applications such as Sound Forge, Vegas, ACID, Audacity, IClone and much more



I think this product truly lives up to it's potential, seeing as you can change your voice in most household programs, including msn and skype.
I have used this to have a laugh with my mates, and is great for prank calls on skype.
Really Good Software.

Hope you enjoy!
File Size

http://rapidshare.com/files/113424086/MorphVOX.Pro.v3.0.5.rar