Tvisto or Mvix help

Has does anybody have either of these

http://www.mvixusa.com/product.php?product=mv4000u


http://www.galaxymetalgear.com/Products/3500tvisto.html

What are the pros and cons of the 2? Any other products i should look at? I want to take all me video and put them on a hard drive and be able to watch them on a television without having to build and set up a network. I just want to be able to upload them on the drive and then put it in another room and not have it attached to a computer for it to play.