It was not my plan to buy 64 bit Vista Home Premium but I did. I keep reading scary stuff. Presumably the hardware drivers that come with the machine work

but are there things to look for? Will my software work? 64 bit is a new world for me.

I need some directions please. My plan was to use it as a server but a working server in that if I were in the same room I could use it as a computer. Thanks.
AMG Phenom 9100e quad core processor
4 GB DDR2 dual channel memory
640 GB hard drive