I have to disagree with Amrican here. I got my system (VGN NW150J) just last week. It seems to be working just fine.  The only issues I have is the battery life- it doesn't give up the 4.5 hrs it promised.  Other than that, with 4gb RAM and 2.1 GHz Core2Duo processor, this $799 laptop is a steal.
Amrican, maybe you should set your wireless security setting to WPA instead of WEP. I haven't had any issues with the wireless thingy so far.  Let us know if that helps.