Check out my article on multiples and sleeping--I found some good options. Personally, mine are sharing a Graco Pack n' Play (one set up in our bedroom for bedtime, the other in the family room for nap time) and loving it! Good news--they have slept 9 hours the last two nights and have slept at least 6 hours every night for over two weeks. Yipee!
Multiples and Sleeping article on Examiner.com
Taking a nap in our bed with big brother Michael:)