is a matter of opinion, but a good setup would be:-
Netgear DG834GT wireless modem/router
Netgear MA111 wireless USB adapter
Netgear MA521 wireless PCMCIA card adapter
No compatibility issues - prices vary, so shop around,
click here might be a good place to start.
Remember that when you are setting up the USB adapter you MUST install the software before you plug in the adapter.