54mbit Wireless, which is the 802.11a standard from my experience at home isn't really that good. It has problems with range and walls. On the average, even if you are close to the AP, the speed goes up and down. Many times I hover around 18mbit, which isn't that great.
Last week, I made the final decision to switch over to the new 22mbit 802.11b standard which is both 11mbit 802.11b and 22mbit 802.11b with the 256bit encryption. Personally, I have been nothing but, unhappy with the performance of the 802.11a 54mbit, it just isn't ready for prime time yet. Skip it for the moment and wait till the new combo 802.11a and 802.11b access points comes out, they will suppot 72mbit, 54mbit, 22mbit, and 11mbit and all of the popular standards. Right now, I think that is what the future is for the moment, but who knows things might change by the time Comdex rolls around.