I'm building a PC and have some hardware questions?

I'm a bit of a computer man myself. I've upgraded the RAM on my family's computer at least five times. If you opt for gaming, I would suggest taking the 4gb. Not only will you have more room on your PC for games and programs, but the processing speed will greatly increase if there is room to spare. I've seen a Dell with 6gb memory transfer three movies to an iPod with a USB 2.0 drive in less than a minute. I can only imagine the advantages of gaming with that much system memory.