Quote Originally Posted by rkhalloran
The GX has (a) 2 USB 2.0 ports vs. 1 USB 1.1 port on the -G version, big improvement if you're planning on using USB-attached hard drives and (b) has the "afterburner" wireless enhancement so potentially you can get 100+ Mb/s throughput if your client adapters support it
to correct you in the differences the WL500g also has a LPT port, the WL500g Deluxe (WL500gx was it's codename only) has not.