Replying to Travel Help

hey guys, so some of my buddies and i are planning on doing a euro trip. so, ive been to france, england and belgium already, but none have my friends have been overseas so they don't know what to expect.

originally, we were planning on island hopping in greece because one of our friends has relatives there, but were not down cause theyre planning on staying for almost a month. so, what do you guys recommend? is it cheaper to fly or take the train once youre there? we plan on partying obviously, but a beach and some sightseeing is also necessary. we would like to travel quite a bit, but not as much as a backpacker would. we would prefer hotels/motels to hostels as well.

so ns, help us plan a trip! ideally, we'd like it to be 10 to 14 days and itll be during summer 2010.