i need the following translated into latin - it is to be a tagline for
a media arts course - 'wake up and start dreaming' - the context is
that we want to give the sense of the student having to wake up to the
demands of the university and the world of work but at the same time
be at their most creative. we'd really appreciate a quick reply on
this one please.

thanks

"excito sursum quod satus somnium"

Not sure about accuracy of context, etc..but a english-latin
translator is availabel at
http://www.translation-guide.com/free_online_translators.php?from=English&to=Latin
  which is where I got this one...hopefully it helps!

'Somnium' is probably not a totally appropriate translation - the word
has connotations of foolishness and flippancy.  The verb you would
need is 'dormito', which presents a difficulty as this is inextricably
linked to the state of sleep (making the 'wake up' part of the
sentence relatively ridiculous).