Sears offers the Craftsman Universal Miter Saw Stand, model no. YH-MS029A, for $62.99 with free shipping. That's $37 off list and the lowest total price we could find, although we saw it for $4 less last month. It features brackets that fit most 10" and 12" miter saws, support arms that extend up to 80", spring-loaded support legs, adjustable height, and support for up to 330 lbs.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.