I often get emails asking how I do my screencasts. There are a lot of apps I've tried and discarded but over the years, the one application I absolutely rely upon is ScreenFlow. I've written about it before. Today Telestream released version 5 and its on sale for just $35 for one day only. (I paid $99 for the last version.) I'll be writing about my experiences with the new features soon but for now, if you have any desire to ever make a screencast, today's your day. Go get it now.