If you want to get a bit fancier, I just ran across a Sliding Table Jig in a book called Routing and Shaping by Nick Engler, Rodale Press, 1992 (see pp. 47-49). I am a novice woodworker myself, but I've spent a fair amount of time studying various woodworker's supply catalogs and it seems to me that this jig is more versatile than most mitre sleds. It can hold the stock horizontally or vertically at any angle. It's made from plywood with a few bolts, washers and wing nuts and one toggle hold-down clamp.