SHOULD I BE SCARED TO PURCHASE. THE GUY SAYS THAT HE BUYS USED AND REFURBS AND RESELLS THEM. HE IS OFFERING MBP i7 dual core, 2.67mhz, 8 gigs of ram, high res anti glare screen, and 500gig hdd. i have priced the similar i7 quad core and they are over 2k. he wants 1700