if your going to get the 64 bit vista make sure its the ultimate for best performance also. the windows defender will work fine enough if your not going to be online for a lot and leave it connected to the internet.

i use my webroot spysweeper /antivirus/firewal program for the vista 64 and have no problems.


the hard thing is now that your going to vista and 64 bit then you will need to make sure programs you install on it will be compatable witht he 64 bit operating systen

good luck its hecka fast


roger.