Netgear WG111v2 drivers for OS X
However, after much searching, I have found a driver for the Realtek chipset that works on 10.3 - 10.5 flawlessly. No more dropouts!
If you want them, you can find them at http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=24&PFid=1&L evel=6&Conn=5&DownTypeID=3&GetDown=false&Downloads=true under the '*L' model section
Intel iMac 20" Duo 2ghz, Mac OS X (10.5.3)