My fiancee's Acer laptop of four years now seems to have died the death that it has been threatening for a while (and 'for a while', I mean about three years).
In terms of a replacement she has a budget of £300, and the only real requirement is that it has Microsoft Office and a CD/DVD writer. It will only really be used for the basics; typing word documents, basic web surfing in terms of checking e-mails and such, and that's about it. The only even marginally complex use may be the use of a subtitling programme that will require the ability to play videos quite well and handle large files efficiently.
Any suggestions as to a basic laptop (not netbook or desktop) that would cover those requirements? Obviously some level of reliability would help as well (don't want to be replacing it after a year).