Thought I'd share this with you guys in case someone wanted to get one.
Black/Silver: http://www.tesco.com/direct/nintendo-3ds-xl-black-silver/275-2139.prd?pageLevel=&skuId=275-2139
Black/Red: http://www.tesco.com/direct/nintendo-3ds-xl-black-red/711-8479.prd?pageLevel=&skuId=711-8479
Black/Blue: http://www.tesco.com/direct/nintendo-3ds-xl-black-blue/483-4271.prd?pageLevel=&skuId=483-4271
Voucher: tdx-fq7w
Enjoy
Black/Silver: http://www.tesco.com/direct/nintendo-3ds-xl-black-silver/275-2139.prd?pageLevel=&skuId=275-2139
Black/Red: http://www.tesco.com/direct/nintendo-3ds-xl-black-red/711-8479.prd?pageLevel=&skuId=711-8479
Black/Blue: http://www.tesco.com/direct/nintendo-3ds-xl-black-blue/483-4271.prd?pageLevel=&skuId=483-4271
Voucher: tdx-fq7w
Enjoy