i'm using dell desktop with 320 Gb hardisk,4GB Ram & Nvidia 9500GT graphics card but ....dunno y...2day my motherboard crashed B'ocz i think i expanded d 500 Gb hard disk ...+ changed my processor dual core To-> Core 2 duo...now i'm thinking of even higher configuration...so i need some help..plz guide me...which processor should i get.. is i5 or i7 & is h55 motherboard better option for me or it can do just fine wid just changing d motherboard...so tht i can play games & do have a speedy PC...plz help !!