Computer is irritating the piss out of me

[Skeeterbop]

Ok, so I finally got my desktop setup after it sat for a little over a year while I was deployed and moving. Here is what is really pissing me off and I'm hoping somebody here can help me out. My computer hangs for some unknown reason. I thought it was hanging when it was in sleep mode so I disabled it. It still hangs now, just that when it happens now I stare at an image on the screen. Sometimes I can see and move the mouse, but nothing happens when I use it or when I try to use ctrl-alt-dlt. I'm currently in the process of updating drivers to see if that helps. I just updated the driver on my GeForce GTX280 and once that is finished, I'm going to install the 100+ updates from microsoft. Oh, there was also one BSOD but it restarted to fast for me to catch what caused it. I am also going to try updating the MB drivers as well. This is really starting to irritate the crap out of me. If anyone has any ideas on what I can try I would be thankful for the help.