Doing recordings of your virtual events is very important as the recordings are what you will convert into your passive revenue products afterward. You want to make sure you have back-ups for each medium.
To do audio recordings:
• Free Conference Call allows for bridge line recordings
• AudioAcrobat.com is a recording tool that produces high quality audios, custom embeddable players and more
To do video recordings / screen capture:
• Camtasia
• Screenflow (Mac)
• Screencast (as a place to host / store recordings)
With Camtasia, you will have to line up the audio and video together as you'll be recording them separately - audio via the bridge line and screen capture via Camtasia. You can also setup a PC / Mac microphone that you can default Camtasia to record audio from at the same time. However, that will only record your voice and not the voices of the participants.