I'm very interested in something like this: http://computers.pricegrabber.com/hard-drives/500gb/p/11/form_keyword=500gb/st=query/rd=1 It automatically is just showing my hard drives... not laptops/desktops that have 500gb drives in them or anything like that.. Likewise, searching for "16gb" gives me flash memory instead. I wonder, how one might go about building something like this? How can you appropriately narrow down their results for them? Would love to hear any ideas you guys have! Thanks!