Fry's Electronics offers the SIIG Articulating Dual Desktop Mount, model no. CE-MT0Q11-S1, for $64.99. This $45 mail-in rebate cuts it to $19.99. With free shipping, that's the lowest total price we could find by $59. It can support up to two monitors measuring 13" to 27" and features a 44-lb. weight capacity. Rebate expires December 25.