Some corrections and updates..to the visa table

First thing you need to know is that for most countries where a visa is required you have to fill an application form and submit to passport-size photographs. For most cases the application can be downloaded from internet and if it's not possible you will have to fill it at the embassy. To fill the application you need to write down which flights you're taking to go there and to leave the country, where you will stay, all the stuff about your current situation (occupation, ...), and if you ever get sentence for something, etc (they really think that people that have been sentenced will honestly answer yes to these questions..)
Anyway you only need a few minutes for that and once it's done you'll be asked to pay the fees and to leave your passport for a few days.

However there is some exceptions like the embassy of Cambodia where you need to give everything in double plus a photocopy of your passport and also the embassy of Burma.

Burma: fees are 34SGD for a week (I need to check that), you need 3 copies of your passport, of your student visa, three filled-applications and finally three passport-size photographs... So sometimes it can be an hassle to get a visa but if you take you're patient and always think to bring many passport-size photographs and your student visa with you it shouldn't be a problem.

Hope it can help you and enjoy your stay wherever it is.. :p