I'd wait - the German economy is faltering and many sources believe that they will have to cut interest rates as well - once the largest european country starts to drop the Euro will start to level off. Probably going back to around the £1 to 1.35 Euro Mark and maybe even better.
I'd also go to street bureau de change and barter with them. I get great rates, on my terms with no commission. Tending to get half a cent off the mid-market rate. Check
www.xe.com for the mid-market figures.
Hope this helps.