some videos showing the TIG Welding and Plasma cutting for the Economy model 520
While it is not in the same class as the Powerultra 205 it is at least in my opinion heads and shoulders above the normal offerings out there today
http://www.youtube.com/watch?v=iTF1ytpd7wg
http://www.youtube.com/watch?v=U9cql4fbeM8
http://www.youtube.com/watch?v=woNfG-48cvI