I just picked this B&D SM1850BD Sliding Compound Miter Saw up for $50. Some Walmarts have this marked down to $30. Amazon has it for Prime Members only for $115.
Walmart Link for Specs [walmart.com]
Brickseek Link [brickseek.com]
Features: Cutting capacity: 2 in. x 8 in. at 90 degrees and 2 in. x 6 in. at 45 degrees (dimensional sizes). Die-cast aluminum construction for lightweight transport from storage to worksite. Dual rail system with linear bearings allow for smooth and accurate operation. Miter Range: 0 - 47 degrees left and right: Bevel Range: 0 - 45 degrees left. 9.0 amp 5,000 RPM ball bearing motor