cheyenne1212 > 802.11a is 54mbit/s, but I've heard the equipment is much more expensive than the usual 802.11b, which is currently the most used of the three wifi standards (a,b,g)

Also, other devices such as microwaves, certain cordless telephones, and other household items can cause interference with the signal. The freedom of movement is definately nice, but my vote of advice is to keep the wired network in place, if all else as a separate network to keep computers on that might have more private information, while using the wireless network for less sensitive purposes.