God no, you don't want any dreams about the purple swingers' house!
For everyone rightly 
at Cambridge prices: it's 50 mins on the fast train to central London, so pretty much as convenient as lots of outer London but with this amazing, historic centre, very good schools, and everywhere is walkable or cycle-able. It's also got a very rapidly growing economy, pulling in lots of people with high skilled jobs in IT and science-related business. Microsoft's European R&D HQ is in Cambridge, and other similar business are moving here. They can't build houses fast enough (and people will buy the grim overpriced boxes in Trumpington). Because of all this, it's got one of the highest rates of house price growth anywhere in the UK (the highest at one point last year, I think), which means lots of overseas investors are dumping their cash into Cambridge property, which pushes it up even further. Great if you own a house, or are a high-paid tech person relocating here with a ton of cash; awful if you are a normally-paid person moving here, or someone who gew up here and want to stay close to family and friends.