I want to upgrade my ram on my gaming computer from 2 GB to 4 GB. I've read that 4 GB will be a 'must' in the future, so I decided to upgrade. Currently, I have two 1gb sticks of ram installed. So I was wondering if buying another two 1gb sticks is the right way to go, or should I buy two 2gb sticks and trash the ones I already have? (I really don't want to do the latter). This is the motherboard I have, http://www.newegg.com/Product/Product.aspx?Item=N82E16813121035 Will having four 1gb sticks be a lot worse than having two 2gb sticks on my motherboard?