I've just posted a how-to over at wrt54ghacks.com on adding a removable antenna to the WRTSL54GS versions 1.0 and 1.1. This modification will allow you to use all manner of antennas with RP-TNC connectors with your router.

Check out the posting here.

As always, comments are welcome.

- Larry "haxorthematrix" Pesce

larry /at/ pauldotcom.com