said by antdude:What is a dual-band router? Is that G and N together? What would I do if I got one in the future (e.g., WRT54GL dies).
A dual-band router utilizes both the 2.4GHz AND the 5GHz spectrums.
Many devices are now have 5GHz wireless adapters. If you end up getting a dual-band router, then you can use an access point as described above.
As mozerd stated, the Range Extender may not be good for multiple devices that are being used at the same time, so if speed is a major issue, it may not be the way to go.