I am building a car PC and obviously need to go low power as much as I can. I am thinking of getting a Chaintech mATX board with onboard GF4MX video and throwing a mobile Athlon XP in there. What I'm thinking is taking the mobile Athlon XP out of my main rig (XP2500) to put in the car rig, and getting a new mobile AthlonXP for my main rig, providing that it will go faster than I've got. (2.2ghz) So what I'm asking is are there any new revisions? Or what one will give me the best speed. 2600+? Or I could always go with a VIA Eden setup...