I use an already supported wifi card (MSI PC54G2 PCI), and I'm quite satisfied. But: One thing is, I changed to the ndiswrapper method because the Linux driver had connection problems (the wifi signal I recieve is quiete weak). I started to use the Windows driver but I although the connection is a bit better now, I cannot be sure that the system changed its driver - there is simply no way of proving that ndiswrapper has taken over. Or I am wrong and doesn't know how to check it. Either way, it would be nice to have it displayed clearly.
The other thing is, that the included ralink Windows driver seems to be not the newest one. Could you check that one?