hey...ive got an athlon xp 2500+ barton core with stock heatsink and steel case. i have motherboard monitor running and my cpu idles at about 45 degrees celcius. under work loads it gets in the upper 50's. im planning on getting the new vantec aeroflow heatsink which has a revolutionary design and the xaser 3 tower case from thermaltake. i was looking at lian li but i like the "toolless design". should that temp raise concern or haste for me to buy new HS? and what do you think about my component choices? let me know your thoughts people...