We had our DD in a bassinet right by our bed until she was 6 months, then she moved to her crib (which we will soon have to convert into a toddler bed, since she is starting to get ideas about climbing out of the crib). I expect we will do the same thing again unless this babe tells us he prefers otherwise.
I was open to the idea of cosleeping when our DD was born, but she was just never good at sleeping in bed with us. Even as a tiny thing, she would flail around and poke our eyes and grab our noses and kick us and whack us so much it wasn't even funny. As soon as we put her in her own space, she would calm down and fall right asleep. It's still true today. She's almost 2, and if she's in bed with us she wants to play or be cranky, even if she's really tired and should be sleeping. We all sleep much better if she has her own space. She does end up sleeping in our bed sometimes (like if she wakes up in the middle of the night and just can't fall back asleep for some reason), but we couldn't do it all the time.
I liked the bassinet right by the bed when she was younger so that I didn't have to get up and go anywhere in the middle of the night for night nursing. We moved her to her crib at 6 months because that was the age limit on the bassinet, although I would've liked to keep her close longer. But by then she was night nursing less, and usually DH would get up when she cried in the night and bring her to me so I could nurse her in bed. Sometimes after that we'd all fall asleep together, or sometimes she'd be restless and I'd take her back to her crib.
Mom to sweet DD 8/08, and adorable DS 10/20/10