Even assuming that the 2GB stick would work (and I have strong doubts it would), 1.5 will still be the max recognized. The stock wifi is probably a 2100 (maybe a 2200 Intel). If it is a 2200, you can use that for now, but a switch to the 600mw Engenous would be the logical choice as it is the standard around here as long as you do not desire to go into the "N" range. The stock antennas (if so equipped) will work fine.
One CF-52, four CF-18's, 4.5 CF-28's, one CF-29, five CF-M34's, two CF-37's, one CF-P2 and two CF-P1's. There are also two Getac A320T's, one Fieldpac and two IBM Transnotes. Not to mention the AMD 5600 CPU with three monitors and several HP PDA's. Whew! Must quit buying...no, must have MORE! Then there are the weapons...
Ineptocracy: A system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers.