Best place to buy a digital slr camera in london?

I'm looking to get a nikon d3100 and two lenses. Can someone recommend a place in london with good prices and availability? Or, better yet, a good website (or store with online options) where I can view products and order them (with equipment sent from the UK and not from overseas). And that has good deals, for example kits that include the camera and an extra (telephoto) lens? I saw this great kit on amazon.co.uk but it is shipped from the USA and that won't work for me.
http://www.amazon.co.uk/...0047QJ0X6/
anyone know where I can get something similar?

You should go with Nikon D3100 18-55vr Kit

14.2 megapixel DX-format CMOS image sensor delivers lifelike images with vivid colors and reduced noise
EXPEED2 image processing engine provides enhanced movie recording, high-sensitivity performance and maximum image quality
High ISO (100-3200) light sensitivity - manually extendable up to ISO12800
D-Movie - full HD (1920 x 1080) movie clips: record beautiful high-definition (HD) movie clips with sound
GUIDE mode: quick and easy-to-use in-camera assistance