Hi, I just decided to replace my 4GB 2000Mhz PC3 with Crucial 8GB 1866Mhz PC3 Qute frankly I never really ran my Ripjaw above 1800-1900mhz anyway so, question is this, is there really any need for the extra RAM in gaming? or is 4GB enough still. Also, what about the speed, am I making a mistake? is somebody going to tell me for gaming, I need at least 2000mhz ram speed? Help me out! as I can still cancel the order. the 8GB was cheap enough, just is there any point?