DSLR for £300-£400 - Sony A37?

A37 is one fine camera. I currently own A33 (which is similar to A37), I used to own KM 5d. If you decide on A37, you might consider kit with 18-135 lens. It's ~ £100 more, but you will get much better lens for little money.

oops, I see my post is late

congratulations on your new camera, waiting for photos!