We got a fisher price swing/cradle, the one that looks like a papasan chair, soooo comfy looking! (the actual name of it escapes me right now ) Was one of the best things for a fussy baby.
We also have a Kickin Coaster and IMO waste of money DS really didn't like it, looked great in theory but wouldn't have missed it at all if we never had one. The toys on the end of it were like torture for him because he could see them but not touch them, he enjoyed it more once he could stand up and get to the toys rather than sit in it and look at them I didn't like his head/neck position it it either.

Have fun shopping for cool stuff