Depends on what type of laptop you want, high end, budget, whatever. The $529 Vostro 1400 is one of the best I've seen on that model for a base specs, but if you started add a lot to it get expensive. So if you want more than just close to the base model the best deal on that model I've seen was when they had $500 off of $1250. Your best bet is fill out the FAQ and then ask your buy now or wait question (although it's hard answer what the future holds even then).
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