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Get this HP ProBook 4540s i5 Notebook for $579.99 at Tiger Direct. Shipping is around $9, varying by zip code. This is the lowest price we found by $63. It has a 2.5GHz processor, 4GB of memory, a 500GB hard drive and a 15.6" display. There is no sales tax (except FL, IL, NC, TX, GA, SD and ID).