Need a little help. Got an old HP, changed out defective parts but never built one from scratch. I told my self when I buy my next one I am going to build it. Im not a huge gamer but I would like to be able play all the new games out well. I already purchased case from newegg, 400w power supply, and originaly was going to go with p4 2.8c, gigabyte 1000pro board, nvidia 5200 card, 40 gig western digital, and cheap 2700 2x256 mb ram for dual channel. Now reading reviews on newegg, I am thinking about 2500+ barton. My main goals with machine are for gaming and dvd burning. Dont know much differences about the 2 chips, and would just like some overall help. Would like to stay under $500 to $600 dollars. One question I have is why is it a +2500 when only clocked at 1.8 ghz. I would really appreciate any help. Thanks.