If your just starting out I would not start by opening your pre-amp and taking a soldering iron to it (sorry chakster). stick with the proven and when you get comfortable then start experimenting. Most MM manufactures build for 47k ohms you would get more out of the MM cart by having selectable capacitance. MC you want selectable resistance (or as we say loading it).
I would also say as some others get a quality MC and add a Step up transformer or MC phono section. there are many out now for reasonable money (under$1k, even under $500) that will sound great.
the Dyna above is a good choice also look at the Audio technical carts they make many that are stellar performers for the dollar a few outstanding ones for under $500 (OC9 comes to mind).