I use this ..... Internet Download Manager v6.07 I love it as it is the best download manager and can grab all YouTube and more
Improved FLV grabber to save videos from web players on YouTube, Google Video, MySpace TV, and other popular sites
Apart from that it is about $25 and it's main use as a download manager it does very well ...
http://www.internetdownloadmanager.com/If your interested I have bought a bulk lot of
Blaze DVD Pro 5 and got them for a good price and will be selling for about $20 ... (much the same as Power DVD but a lot cheaper than $140

)
Review here ....
http://www.impulsegamer.com/pcblazedvdpro5.html