I use a wireless small USB Keyboard/Trackpad and mouse with my lappy based recording rig. I can take the wireless stuff far away from the lappy to escape noise (even in the next room) if it's a problem with vocals or acoustic instruments. I forget the model numbers but Logitec has a series that can share one USB wireless dongle among multiple devices. It is amazingly useful and all them work at the same time. You can use either keyboard and any/all of the trackpads and mouse interchangeably.
Actually I did the same with my desktop system as well.
--Bob