A blog post I came across has a list of skills needed for a multimedia journalist; this list is based on the author’s talks with professionals from major media outlets at a job fair last year:

• Excellent writing skills (emphasized by everyone)
• Proficiency in multimedia platforms – i.e. video & audio
• Proficiency in multimedia tools – Flash, InDesign, Photoshop, Dreamweaver
• And “flexibility, confidence, adaptability and versatility – as in, at a moment’s notice, a print person might be on camera.”
• “real world experience” and the importance of being bi- or multi-lingual.