I'm looking forward to the Super Vision performance at Royal Court tomorrow night (its also on Fri & Sat.). I went to Marianne Weems talk last Friday and it looks like a really interesting fusion of theatre and technology.
You can watch a trailer on the website: http://www.superv.org/
And as this is a part of the Capital of Culture Liverpool Performs year you can find out more on the liverpool08 page:
http://www.liverpool08.com/supervision/

Then in similar vein but dance rather than theatre on Friday and Saturday New York based Troika Ranch bring their lush multi media dance work to unity for their Liverpool Debut. Performed by a company of UK based dancers, 16 [R]evolutions fuses video, interactive media and imagery, integrating dance and theatre.
More details in a previous posting:
http://www.artinliverpool.com/blogarch/2006/04/16_revolutions.html