Thanks to those who responded to my earlier post... we've decided we will go ahead and get the ARCS, but i decided not to get the one i saw on CL (after seeing it, just didnt look to be in "new" condition).... so i think we will just register for one unless i find a better one on CL or at a consignment shop or something
now 2 questions:
1) did you get the mini or full-size? I really like how compact the mini is, but the full-size has a bit of a higher weight limit. (23lb vs 30lb).... and the full-size has the option to covert to a playard (PnP style) so that's an added feature. (although it is $50 more, so for that price I could always buy a PnP, especially if i get one 2nd hand)
2) if you have an ARCS, do you have/use a PnP as well? I'm thinking the PnP would be good for when LO is being babysat (could be used for sleeping in at the babysitter's house) or for naps at home downstairs (LO's room will be upstairs)
FWIW, we are probably only planning on co-sleeping for the first several months. Once s/he is no longer waking multiple times during the night for feedings then we will move him/her to the nursery upstairs.