Which is better? I am looking at buying a ACER new laptop, and they have some older models (I believe) on sale right now with the AMD Sempron 3100+ 1.8GHz .... or I could wait and look at the new models coming out for the Back to School sales that have the AMD Turion ML-32-1.7ghz ... which is what is in my price range... which do you think would be the better choice? Buy a year old model or wait for the latest and greatest?