I just came back to see the discussion about printers. If you're going to do a lot of colour printing, get a printer which has seperate colour cartridges- i.e. magenta, yellow and cyan. A lot of the time you end up using way more of one colour than anything else and thus would only have to buy one cartridge at a time instead of not being able to use the mixed colour cartridge ad have to replace it every single time just to get one particular colour out of it, thus wasting ink.
If you're only going to really be printing essays or something then I'd say don't bother buying a printer. If you already have one it's up to you but I'd say it's a waste of money, even if uni printing is expensive you can go to shops such as Ryman's and printing is relatively cheap, and becomes cheaper in bulk.