I am in the beginning stages of making my sonotube shiva sub, and am at the stage where I need to cut the end caps. The father-in-law has a nice jig saw, but then after some surfing, I found this -- Chicago Electric Cheap 1hp Plunge Router I know its $29 bucks, but will it do the job for me? I really am trying to minimize cost on this project, so I dont want to spend $100 bucks on a router/circle jig to make perfect circle, but if I can get easier/better circles out of this $29 router than a jigsaw, I rather do that. Give me your opinions! Thanks!