Few clarifications...
2 points....
1 - the full-size numeric keyboard is an option at no extra cost.
2 - the increased prices only reflect the falling £ against the US dollar - see this article.
http://www.macworld.co.uk/mac/news/index.cfm?newsid=25241
Lots of other products have gone up in price for the same reason e.g. Ford have increased their car prices which would seem like the last thing they would do in their industry if they could avoid it....