5800 series what? Which model? Considering I can build a i5-2500K system which is more than 10% faster than yours for $700-ish I'd say a sensible price for yours would be ca. $600. I know, it sucks. You probably paid a lot for the i7 + mobo but nowadays it's kind of obsolete
Yeah, you will need to be way more specific on the parts, 12 gig of ram but what name, speed, model? And I'm not even sure what "FUJITSU MARVELL Raid VD 0 SCSI Disk Device (SATA) " is. Guessing it's a regular 2 TB sata drive but you got SCSI in there so it kinda throws me off. Not trying to be a smartasb, just looking for current pricing on components. I have built several systems since last year and with the new tech out you really won't get much for it. Probably around $650 to $750. Less if you got to ship it. Believe me, I have dropped prices when most of the components were new. Most people won't pay for what you got invested in it.