I've narrowed my search for foldable bikes down to the BMW Q3 and the Dahon Zero G. I'm unable to find the Dahon Zero G(my first choice) at any bike shops here and the one dealer who does carry them will not get them in until June even though she ordered them in Oct. The BMW Q3 is readily available within 3 days from any BMW dealer or Neiman Marcus.

I need the bike as soon as possible so I can get used to it before I take my trip in June. Can you recommend any online bicycle shops that would have a wide selection of foldable bikes? I've done searches and none of them have what I'm looking for. I also need to know where I can get the proper case(with wheels) so I can check my bike as luggage.