I have setup and used several wireless routers with apples. If running OSX. any will work, 11b/g. Apple make most all of the hardware compatable with the PC world. They know they are out numbered.
They area that has a problem is with the web interface, it uses java script. I have been forced to use IE on a few. I also had to upgade the java to newer version, apple seams to be 2-3 version behind. It just like some web pages do not work, most were written for IE only. Firefox now works with allmost all sites now. Particular since MS lost some law suites and were forced to change things.