hi, first post, my friends are tired of me asking these stupid questions. my 2004 dell dimesion has a P4 2.4ghz cpu. is there any simple way to improve the cpu ? if so can i just drop it in? i have 2 dimm slots. 1/2 gig each. will two 1 gig sticks make a difference? if so, can i use pc3200 or do i need pc2700, or are they interchangeable? thankyou.