QuickerTek Quadruples Titanium Range for a Price
You own a Titanium PowerBook. You have an AirPort Card. You've been frustrated with its range, possibly for years. You could buy and install a third-party card using AirPort Software 3.2 or later and get the benefit of 802.11g's 54 Mbps. And that will improve your range somewhat, often substantially. But...you...want...more...
QuickerTek says they have the answer: they combine the Buffalo 802.11g PC Card with a whip antenna to produce four times the range of a native Titanium with AirPort Card. It comes at a price: $170 less a $35 rebate if you send them your AirPort Card. (You can get about $60 on eBay for the item, but you have to deal with the whole transaction and fulfillment.)
You can purchase the Buffalo card separately for as little as $50 after a $20 rebate. It works with Mac OS X 10.2.6 or later, but I believe it requires that self-same AirPort Software 3.2 noted above.
(The one flaw with this package is a legal one; while it's legal for QuickerTek to sell the antenna to use with the card, it's illegal for a user to combine an antenna with any wireless equipment that hasn't been specifically been certified by the FCC to work together as a system. Now, you're not going to get arrested by the FCC police for this act, nor have we ever heard of anyone being fined or prosecuted for it. Still, it's wise to know when you're breaking the law and when you're not.)