PC World will give a free or discounted laptop to every customer that signs up to an 18-month mobile broadband subscription from 3.

Customers can choose an Advent laptop from a list of more than 10 "highly specified laptops" and get a discount equivalent to up to £350.

Customers who sign up to the agreement pay £35 a month for their tariff and are tied in for 18 months.

They get a 3GB per month download allowance. Excess data is charged at 10p per MB thereafter. Customers also get 200 included texts within the £35 per month tariff.

Carphone Warehouse and 3 run a similar 'free laptop' promotion. In that case customers get a free Dell Inspiron 1520 if they sign up to the mobile broadband tariff.

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