Hi guys, Running an 802.11g network and got an old iMac G4 800 w/o wireless that I'd like to get online for music streaming. Do you suggest I get a USB wifi adapter or an old Airport card for it? If so, which ones are cheap + reliable? Have read some bad reviews re: connection strength with USB dongles, but since the Airport card would only be 802.11b... Thoughts and recommendations? Not sure which to buy. Thanks.