I just bought a new laptop, I was searching for a laptop on the range of prices between 10,000-15,000 Baht and the highest specs and best value notebook I found was the Lenovo G470 series. I paid 12,700 Baht.
I bought it from 'Hardware House' store, they have many branches nationwide and their prices are fair, adding to it they give a free package bag with mouse, bag for the laptop, headphones, Laptop Cooling Stand Notebook fan and cleaning spray for the laptop.
I found their service to be very efficient, fast and the best thing is their big network in Thailand which I think its a great advantage for a customer need after sale service and wide selection of products.
Their website:
http://www.hwhinter.com/My new Laptop:
LENOVO Ideapad G470/B950 Pentium B950 2.1GHz 2048MB DDR3 500GB DVD-RW 14inch Intel HD Graphics 3000 Dos
Warranty: 1 Year. International.