My wife is bitching about her computer being too slow. Its a 1GHz Pentinum with 512MB ram. The OS is windows media center. All I will be looking to do is replace the motherboard & CPU. I want to keep this cheap, but still have it be reliable. I will just use the video, sound, & network cards out of the old computer along with the CD, CDRW, & hard drives. All she really does is surf the web & do banking. She want to play the new Sims games , & she plays all the shitty slots & mahjong games . So what would you suggest for me ans far as MB & CPU?