Two months in Europe

[chchchchia]

Hi all.

I'm traveling to Europe for 8 weeks this summer. I've been to London/England and Paris/Normandy/Loire Valley before, but I was rather young. I'm big into all things culinary, including brewing, so I've tried to hit up all the good places to eat and drink, as well as see the sights. I'll be backpacking the entire way, so its Hostels or bust. I've also got a nifty 2 month flexi eurail pass, good for 15 travel days.

This is my itinerary so far

Fly into London, stay a day, take the train to Brussles (my first base city)
Brussels - 2 nights
Burges-2 nights
Amsterdam-3 nights

Germany

Hamburg - 2 nights
Berlin -3 nights - night train to
Munich - 3 nights
Romantic Road - train to Fussen, see mad Ludwig's castle - then take the late train to Augsburg - 1 night
Work my way North via train to Frankfurt
Frankfurt - 2 nights (I could do Stuttgart instead if that would be more interesting)
Cologne - 2 nights

France, Pt. 1

Strasbourg - 2 nights
Nancy - 2 nights
Dijon - 3 nights

Switzerland

Bern - 2 nights
Interlaken - 3 nights

France, Pt. 2

Lyon - 3 nights
Nice - 3 nights
Marseilles - 3 nights
Avignon or Nimes - are either of these cities worth it? I could drop Toulouse if need be.
Toulouse - 2 nights
Pau - See the tour go through - 1 night
Bordeaux - 3 nights
Nantes - (if I include nantes, I'd have to skip seeing the tour...worth it?)
Canterbury - 1 night

England

Canterbury - 1 night

Take the ferry from Calais, and work my way back to London quickly, with 1 night in Canterbury and then take the train the day of my flight from Canterbury to London. This seems like a bad idea to me, what do you think?

I could drop the whole Calais thing if it's not worth it and take the discounted chunnel train to London.

Have I missed anything critical?

Have I overbooked this trip?

What are your thoughts?