I want an Ergo too! Had a Moby for DS #1 and it took me so long to get it on that it never seemed worth it.
Also, I would advise a Rock 'n Play. We suffered for 3 months before getting one, and it is truly the greatest thing ever invented. DS did not like his crib and insisted on being held literally 24/7 until we got the Rock 'n Play. We will be using it from day 1 this time around.