Web Presentations

We do a number of online presentations with our prospects. We currently use Webex, but I am looking for other possible solutions. I have tested Go To Meeting and like it's ease of use. Are there others out there that are worth looking at? I like a lot of the features of Webex, but my number one complaint is getting the meeting started. It doesn't always work quite right and even though it is a thrid party software, it's a bad first impression.

We don't do presentations like that but I found these two online.

http://www.conferencecall.com/
http://www.streamlogics.com/

Every system will have it's plusses/minuses, but I don't think you will find a solution priced anywhere near as reasonable as GoToMeeting.