It literally took me less than 30 minutes to convert a 5 year old Inspiron laptop running FC17 into a wifi ap using hostapd. I used yum to install the software (yum install hostapd dhcp dhcp-*) and then edited the hostapd.conf file and issued the hostapd /path/to/conf/file to start things up and then we were live. The signal is strong and performance is consistent with the WRT-54G router that’s been running for seven years. Now, I can leave the router in the basement and more reliably stream to the Roku in the attic loft.
If you need to extend the range of your router, I highly recommend hostapd. And I know I haven’t mentioned it before on this forum, but the Tomato firmware upgrade for the WRT is awesome as well.