look at travelocity or other site which will show you prices for multiple a/ls.....
20 years ago, we paid ~$1200 to europe, so the price is down from then.....
you might save a bit by waiting til 60 days or so before the flights, but if the itin & sked fits, i would go for it, particular re son....however, we dont know how the recession is going to affect summer travel....good luck...