Friends, I am in a dire and immediate need of a laptop computer. In fact, I will be driving out to BestBuy, Circuit City and Microcenter to purchase the notebook this afternoon. So I have about 4 hours to decide what I want and run out to buy one. Here are my criterias: 1. It has to be light, not necessarily ultra-light, but light enough. 2. Pentium Centrino M processor preferably ( I heard it is good for mobility and allows the battery to last long). I don't know about comparable AMD chips. Can you tell me about what AMD chip to look for? And what about the Hyperthreading technology and processor speed (how high), etc. etc. What should I look out for? 3. Dual core - I have been hearing a lot about it. I have to run lot of scientific and mathematical programs, some graphic intensive. I heard dual-core chip is the way to go. What say you? 4. Tablet feature and widescreen would be nice. 5. My budget is in the range of $1500 to $1700. I know I want DVD writer, tons of - usb, firewire, s-video - ports, integrated wireless connection capability, etc. etc. What other features should I ask for? Help!!!! I have 3 hours 56 minutes left to decide.