Apple imac 21.5 1tb 4gb ram i3 Swap for good macbook +

Hi i am looking to swap my apple imac 21.5 1tb hard drive 4gb ram i3 this is a mid 2010 model but has hardly been used in like new condition it comes with everything from new it has got the box the disks the magic mouse the wireless keyboard you will be getting a imac in mint condition i am looking to swap for a apple macbook must be good spec i am willing to listen to offers of a older macbook with money on top or a good laptop with money on top must be in good condition and relistic offers only or can be brought for 700 ono thanks.