In Buenos Aires, old apartments are made of thick, stone walls that really hinder signals. In a long apartment you have to repeat.
I bought 3 WRT-54GS refurbs from newegg for $29 each, installed DD-WRT, set 2 of the three as Bridged Repeaters, put them all on the same SSID (protip: put the word Mega in front of the old SSID), spread them across my friend's house, and he now has great signal everywhere.
"Also take note of the fact that all repeaters, including this Repeater Bridge mode, will sacrifice half of the bandwidth available from the primary router for clients wirelessly connected to the repeater. This is a result of the repeater taking turns talking to not just one partner, but to two, and having to relay the traffic between them. As long as your internet bandwidth requirements are within this halved bandwidth amount there will be little or no reduction in "speed".
But realistically speaking for general wireless, its just fine.
I bought 3 WRT-54GS refurbs from newegg for $29 each, installed DD-WRT, set 2 of the three as Bridged Repeaters, put them all on the same SSID (protip: put the word Mega in front of the old SSID), spread them across my friend's house, and he now has great signal everywhere.