said by DarkLogix:
Agreed, never ever ever use a combo unit
AP + Router = acceptable
AP + Router + Modem = run and hide
if you use a wireless router that can be loaded with a 3rd party firmware then you'll for sure be able to tweak the power output, and if it has external antennas then you'll be able to use higher gain ones
I'd actually recommend even further and have the router and wireless access point two different devices, that way when an even newer wireless technology comes out you can just replace that and not lose out on the features of a really good router, like what business' do.