I have been wanting to build a gaming pc for some time now, I have just got a case but only have €45 to spend at the moment is there a component i could buy to get me going for that price or should i just keep saving?
heh... I don't know the conversion rate, but if its not $10 = €1 then no. Keep saving, this industry changes too quickly to try to "buy something early".
the cheapest you could go would be at around 180$ with an apu or worse, a low power (in both meanings) cpu and video card, and that won't cut it for gaming.