You will have a great time. I tour around Europe every year and can recommend that you go in June if you can and take in Tridays
http://www.tridays.com/I am doing a 3,000 mile tour through 10 countries with about 10 buddies (all Triumph) taking in Tridays, The Black Forest, The Alps, Italy, Eastern Eurpoe and much more besides. If you want the routes flick me a PM with your email and I will forward on to you.
Have a great trip.