LOL I doubt that there are any desktops capable of doing that. 5 years ago for intel would be the q6600 and and GPU would be the 8800gtx. I doubt that the q6600 with dual sli 8800gtx can max out the currently most demanding games at 1080p.
A 5 year old laptop would have only been half that fast. You'd be lucky to play bf3 on low.
good luck on this.
buy a $1500 laptop now and a $1500 laptop in 3 years. Much better choice.
^ +1 to that Or better yet, buy a lan party rig and a cheap laptop so get best of both worlds. 2 x 1k lan rig/desktops and 2x$500 latops
It's difficult enough to build a desktop that can last 5 years for games w/o any upgrades.