I built my most recent PC in March of 2010. I've since relocated it to my den where it is hooked up to my 1080p television and is used exclusively for gaming. I don't have the money to build an entirely new system, but I do have a few hundred dollars to upgrade it a little. I'm looking to get the best possible 1080p gaming experience I can with what I've got. I'm assuming the video card would be the best thing to upgrade, but I'm open to other suggestions. Below is a list of the relevant components currently in the system.
Motherboard: ASUS Rampage II GENE
CPU: Intel i7-920
Video Card: SAPPHIRE Vapor-X Radeon HD 5770
HDD: Intel X25-V (system drive) OCZ SSD for games (can't remember exact model)
RAM: 6GB DDR3 1600