Just a quick a question...will I notice any significant delays with 3 2.4 GHz devices in a small room? I would like to buy a wireless headset, mouse, and keyboard but it would ruin it for me if I got bad delays because of it.
Seriously, if you rely on wifi network, don't use other wireless stuff -- and that includes cordless phone, video sender, baby monitor (you, know like useful stuff).
The wireless stuff you mention is convenience not essential.
I'm pretty sure that goes without saying that anything wireless is just a convenience. That doesn't really help me though..what I would like to know is if all the devices would work as normally if they were in use in the same room.