I bought a co-sleeper (the kind that goes in the middle of the mattress) when I was pregnant with my first baby, I tried it a couple times when he was first born but he prefered to sleep beside me skin to skin so it wasen't really used, we just co slept carefully on a queen size mattress and I did the same with my second child as well.
I did have a playpen that was wonderful for naps when baby was older. I would set it up in the living room when I was doing housework during the day and didn't have to worry about baby rolling off bed. I never bothered with a bassinet as my babies were both 9lbers and long (56cm and 54cm ) at birth so I don't think they would have been able to fit in a bassinet for naps for more then a month or so.
I also had a crib but it was never really used...I actually still have it (solid wood, beautiful sleigh crib) First born would occaisionally nap in it when he was older and needed a quiet, dark place to nap, second born never slept in it even once, not sure if I will set it up again or not.
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