EditWriteWhile reading an issue of Chaff, a Massey University student newspaper, I came across an advertisement which is obviously aimed at university students but I do not see why anyone couldn't make use of its services.
I am of course referring to EditWrite. A company that will, for a small cost of 2 cents a word, read and check your essays. A list of costs and payment options can be found here. Apparently they will read your essay and correct spelling, grammar, syntax and word choice. Now you won't keep getting all those annoying green and red lines in Microsoft Word when you are typing your essays.
It seems particularly useful, and because it is reasonably cheap, I will definitely give it a go.