Is there a way to have my PC talk to my laptop and have it send Keyboard commands?
Yes I believe this is possible with something called Synergy. It lets you use your internet(or LAN) connection to control multiple computers with one mouse and keyboard.
Here is a link : http://synergy-project.org/
I haven't used it in the manner your suggesting, but I believe it should work.
I haven't heard of a solution that uses Bluetooth to connect to multiple systems.
Hope this helps.