Wifi Dongle And Sim Card Options?

[Learned]

I want to get one of those USB dongles that let me put a sim card in and then go online with.

I'm not really sure what I need and what the options are.

I will be using it in Bangkok perhaps 3 hours a day and will just be looking at websites and editing Wordpress. I won't be downloading large files or watching videos.

Can anyone tell me how much I should expect to pay and what I need?

Many thanks.

[Aachen]

http://www.ais.co.th...ternet-package/

For instance 50 THB for 6 hours in 30 days.

and 100 THB -> 20 hours

There are also special data simcards available...