multiple wireless lans

[hmhef]

i have a laptop with a built in wireless lan, and i also have another usb one, they both work fine driver wise

i usually use the built in to connect to my home network, and the ubuntu's wireless software automatically connect with my stored WPA key,
the problem is that when i connect the 2nd usb wireless adapter, it also autoamtically connects to my home network useing the same configuration

i want to be able to control that, i want that wireless software to control only one card, and leave the other so that i can use it normally, maybe with other lans,

and if i use it to connect to a differnt wireless lan, how will i be able to change the "default gateway" for my pc, so that i can be able to choose which network of the 2 do i want to use internet from, and keep the other for lan only
(network1 192.168.2.* and network2 192.168.5.*)


edit:
also is there some better wireless client software outthere that is better than the one built in ubuntu that could deal with my sitiuation a little better ? , i saw something called "wlanassistant" in other linuxes , is that anygood ? and how to get it ?

thnkx

[hmhef]

bump

i woul aprreciate it if u can guide me to what is the names of the tools that can help

[superprash2003]

why not just use the ubuntu network manager instead of whatever software you are using

[hmhef]

why not just use the ubuntu network manager instead of whatever software you are using

i am actually currently using the software that came with ubuntu to connects to wireless lans

and there were the problem occurs, of connecting to netowrks autmatically whever i connect a differnt network usb adapter (since it already has the wpa key saved