i realize you paid much more for the package, but it will be extremely difficult to sell second hand imho, as the audience for such a set up is very very very small. offer stands should you change your mind good luck! surf
Surf's right about a small market for this setup... You'd likely get more selling the monitors individually on Craigslist (save shipping charges, too) and the card on eBay.
fwiw, dell and samsung sell 24" LCDs for under $150 from time to time. the most u'll ever get out of this package is $400.....and time is not on ur side.