Europe Late July-Late Sept 2013 - Group Travel

Hi, Im wanting to travel Europe this summer from July-September. Im up for backpacking, culture, festivals, good food and drink - some parties and clubs (im into my techno to cant wait to check out Berlin and Paris). No real plans - just happy to go with the flow but would love to see France, Italy, Spain, Germany. I have traveled quite a bit but never alone ans at 28 with most of my friends either settled or focused on their career im still keen to explore but have limited options who i go with - so i thought why not go alone, but ideally try to find someone to maybe start with or even plan a whole trip if it goes well! Keen to backpack, bus or train - ive got money saved to have a good time, but dont want to spend a whole heap at the same time!

Europe Late July-Late Sept 2013