Gaggia make pretty much the best home use espresso machines that you can buy. I have been using one of their Classic machines for a few years at home and can't imagine life without my perfect crema espressos!
I have just been looking for a similar machine for my office and spotted this on the House of Fraser site. This is easily the cheapest around (cheaper than the Italian import versions). I know it's a lot of money for a coffee maker, but if you are reading this then you probably already know that it's worth it (edit: and if you are reading this and clicking cold then you probably weren't in the market for something like this anyway - so why bother?)
Edit: If you want the Brushed Steel Classic I've just seen it for £199 here (http://www.maturionline.co.uk/scripts/prodView.asp?idproduct=556&gclid=CIrw04HBtJECFQNFMAodU3PAOQ)