This Week in Tech (TWiT) (www.twit.tv) Inside the Net (www.twit.tv) Cranky Geeks (www.crankygeeks.com) DL.TV (www.dl.tv) Diggnation (www.revision3.com) Ask a Ninja (iTunes - don't know the site - www.askaninja.com?)
Diggnation and Ask a Ninja are the funniest. The others are fun weekly tech casts. Do you have any other favs?
Try out this one: Happy Tree Friends (http://mondo.happytreefriends.com/). It is explicit and not quite suitable for children, however, it is really original and funny.