If you're still pouring over the specs of Nikon's current DSLR consumer models, then you've managed to dally just long enough to snag a tidy cashback offer. At least, that's if you're in the UK and can make your purchase before the end of May. Nikon has confirmed to us that this is a local promotion, but we're on the case to see if a similar deal is coming to the States. In the meantime, the Brit-only discounts range from £30 ($50) on the D3100, £50 ($80) on the flip-screen D5100 (shown above) and £
