This article is not available in post-print (final draft version) until July 2008. If you wish to obtain a copy of the paper please contact Dr Silve at sarah.silve@brunel.ac.uk Digital Creativity (ISSN: 1462-6268) Publisher: Taylor & Francis (Routledge) Pre-print: tick author can archive pre-print (ie pre-refereeing) Post-print: tick subject to Restrictions below, author can archive post-print (ie final draft post-refereeing) Restrictions: * 12 month embargo for STM Journals * 18 month embargo for SSH journals Conditions: * Some individual journals may have policies prohibiting pre-print archiving * Publisher's version/PDF cannot be used * On a non-profit server * Published source must be acknowledged * Must link to publisher version