so Im not really that good with computers and ive tried looking up what RAM to stick in my wife's crappy dell inspiron 600m but ive been getting different answers. i know someone here can help. unless im mistaken, I should be using ddr pc2700. ive also heard i can use ddr pc2100. is one better than the other? also, do i need to stick with 200 pin? i guess im just really confused and any advice you guys have would be very appreciated. thanks a ton