Budgets are a great guide but don't be fooled by price alone, 12 months down the line you wished that you spent a little more for your lap top. My only pointer i wish to make is the processor speed and SD RAM look for the highest.
I'm a bit of a dell fan last two laptops purchased have been trouble free.
Inspiron 1720
17" HD widescreen. Packed with wireless options and 2GB memory.
Intel® Pentium Dual Core Processor T2370 (1.73Ghz, 533 MHz FSB, 1 MB L2 cache)
£469.00
www.novatech.co.uk I also recommend for cheap laptops