hello i was going to order an HP laptop dv2000t off their website and customized it with 100gb hard drive and 1G ram. my question is i found the same laptop that was cheaper in staples store, but it had 2050 core duo processor instead of the 2400 processor which i added to my customizable HP. is there a very noticeable difference speed wise and all together between these two processors?? the 2050(1.6ghz) and 2400(1.8ghz). and also i would be using the laptop for primarily internet browsing and downloading music but maybe install CAD program on it if it wont be too much for it. would the HP with 100gb hard drive and 1g ram and 2050 processor be good enough and fast? please give me any info you may have