Remember Edward and his Super-Powered Wifi/GPRS laptop?
Over the weekend, I found the extreme range wifi receiver he was talking about at Sim Lim Square. There are two models: one with a fixed antenna for S$85, and the one above with a detachable antenna for S$115. If you can afford it, word has it that this “Made in Taiwan” wifi adapter has incredible reception, giving you the ability to pick up hundreds of Access Points if you’re in a high residential neighborhood (e.g. HDB). There is no mention of Mac compatibility though.
There are high-powered antennas you could pick up too, which you could attach on your laptop lid (like Edward), on the roof of your car, or on your head (Caution: Serious Lightning Hazard).
For details, check out Senao’s web site.