In the year since Charles Saatchi first opened the doors to his County Hall gallery, half a million visitors have poured through. It began life with a look back, but it marks its first birthday with a forward-looking show offering a glimpse of works by emergent talents from home and abroad. All are acquisitions made in the last 18 months, and while most are previously unseen, clued-up art lovers will recognise pieces such as Francis Upritchard's 'Moaning Mummy'. Other highlights include a 9ft-tall paper skyscraper. See feature, page 30.