I need a camera that has autofocus, great zoom, great pic/video at night as well as day etc Under £100?

Don't we all... unfortunately at that budget level you have to allow for many compromises mainly because of the tiny sensor which when used at high ISO for nightime shooting has a lot of noise or 'graininess') Spend £7 more and get one of these. http://www.amazon.co.uk/Fujifilm-FinePix-S4800-Digital-Camera/dp/B00AX12W5C/ref=sr_1_1?ie=UTF8&qid=1396694229&sr=8-1&keywords=Fuji+S4800

You're not going to find "great" for that budget. In cameras "great" starts at about $4,000.

That is Canon PowerShot A2500 16MP Digital Camera with 5x Optical Image Stabilized Zoom with 2.7-Inch LCD. With the camera's 16.0 Megapixels of resolution, your images are rich and clear, with textures and tiny details faithfully reproduced even at the long end of the 5x Optical Zoom. This high level of resolution is ideal for creating the largest prints, and allows you the flexibility to blow up and crop any section of an image to express your creativity. The DIGIC 4 Image Processor powers the camera's advanced systems and features, ensuring fast, reliable performance with low battery consumption. The 5x Optical Zoom (35mm equivalent: 28–140mm) in the PowerShot A2500 digital camera delivers outstanding optical performance and versatility. It gives you a great range of potential images from a single location, which is perfect for sporting events and other occasions when your shooting stance is fixed, or times when moving in too close might disrupt the action you're trying to capture. The lens' 28mm wide-angle perspective puts more image in every frame for dynamic, exciting shots. for more details, visit here http://www.amazon.com/gp/product/B00B5HE1SY/?tag=tracking_greefajr-20

bur the parasonic