i must confess that i don't use mine very often, and i only cut wood with it, so i haven't run into the problems bpjunky may have experienced. If you're handy with belts and pulleys, most of these guys run off an electric motor which drives a belt, which spins the flywheels, which makes the blade go, so it shouldn't be too difficult to rig up a different set of pulleys and change the gear ratios, thus swapping blade speed for torque.
i have a Ridgid, which is the house- brand at Home Depot. it was a floor/display model, so i got it for a decent price. had i had the money, i would have bought a Grizzly, but the ridgid can be retrofit with riser blocks which raises the top wheel about 6 or 7 inches higher and the thing can then be used to resaw rough stock if you're also into cabinetry. (why have just one hobby?) anyway, keep careful track of the blade tension and you should be OK- also, don't hesitate to get several differen widths of blade.
by all means, go with a 14" model at minimum.
good luck, and remember, the one who dies with the most tools wins!