Sound is at least half the equation when it comes to quality video. You need to be conscious of getting the best sound you can. Episode 8 of Video QuickTips takes a look at external microphones.
You can find the small clip on mic used in this episode in the Easy Audio Guide Store in the left column of this website.
The Sennheiser is available through www.bhphotovideo.com
and the HTDZ HT-81 is available through Suntekstore.ca