What a useful reply
Are you talking about a brand new one or getting a used one?
Doubt you'll find one a whole lot cheaper than the £189 RRP - £10 or £20 cheaper at the most!
May want to look at the Apple refurbished ones - are fully refurbished returned ones, that are put into new casings if required - can be a bargain. Were going for £129 on the Apple refurb store when I last looked!