I want to upgrade this crap pc, my spec : P4 1,6 Ghz 256 SDRAM Rad 9600XT I play NFSU 2 and its runs laggy, heavy laggy when smoke outs, lots of car, building, sometimes runs smooth. And i think i only need to upgrade cpu and memory to this : Athlon XP 3000 Barthon 512 DDR 3200 What should i choose between Athlon XP 3000 and 3200, is it make big differences significantly ? cause i use them for a long time period. I choose nforce 2 chipset, is it good ? cause i want to use dual channel memory for cheap. And play NFSU 2 more playable! please. And is the dual channel memory make big performance significantly ? In my town these upgrades takes around $210 Thanks.