GoToMeeting currently offer a free trial of their software.

Click here to Download GoToMeeting Free

The download includes a fully functioning GoToMeeting install, which comprises of web conferencing software. After a quick install (took me about ten minutes) you can invite members to a meeting via email or msn. Once in the meeting, you can talk and share desktops. You can also edit documents together.

After downloading GoTo Meeting I was able to have meetings with potential clients to increase my sales. Its alot easier to sell a home when you can meet online face to face, rather than just over the phone :)