Ok Graphics you can get an ATI 3870 cheap you can get one for around 130£ or the 8800GT they have both pretty much the same performance but the ATI is just a lil bit cheaper
Motherboard, RAM: Well atm DDR3 is just far too expensive so just stick to DDR2 and them sticks are damn cheap now as well a 1Gb stick will cost you around 12£
I'd say for a motherboard you can use an Asus P5k they are quite nice boards and overclock friendly as well
CPU: Well the new E8*** chips are already in sale in Japan and a few other places. So it should not take too long anymore for them to arrive in Europe