Looking for the final piece for a build for my son to game on. Looking for a GPU that is better than a HD6450 1gb, which is currently in the machine as a hold over. He is using a 2560 x 1080 monitor but could game at 1080p if it was easier on the card. He has a older Dell Mobo, Sandy bridge could and 8 gb of ram. He does have a Corsair cx600 power supply. He has been budgeting and researching. Just let me know if you have something sitting around. We are looking for a 3 or 4 gb card. Cheap is the name of the game... What do you have?