I'm pretty new to using AP's, and i'm setting up 3 routers as AP's in an office building.
I've got them working individually, but i'm not sure how to get them to work together so that you can walk around the building with a laptop and it'll just connect to the strongest signal with no interruption. I think its called "roaming"
Roaming setup are tricky on AP's that are design to do it. Most routers do not give you the necessary firmware to make it work. If you can load linux firmware you may be able to get it to work.
When setting up roaming MFG set them up differently. Some require the SSID to be the same, and operate on the same channel. Others use different SSID (allow association), and different channels. The problem you will run into is once a pc connects, it will not want to drop the originating SSID for a newer stronger one.