/The 'Gadget Show' the other night suggested going to Tottenham Court
Road for cheap laptops, etc. That is fine if you live in London
but the cost of getting there from Bournemouth would add quite a lot
to their prices./
You could always try MegaBus or MegaTrain for cheapo journeys up to London from your part of the world
http://www.megabus.com/uk/timetables/bournemouth_london_all.php
Stephen D