yes you can. Go to www.guru3d.com and download RivaTuner. You might want to loss the stock cooling and put some sinks on the ram. Remember to bump it up a little at a time then test it. Nice to see another member from Wisconsin.
there are many others but these are as good as place as any to start doing your reseach.
After you get a hold of the basics (for example, what a heat sink is) and start implementing some of these things, you will then, most likely, run in to some real questions that some of us may be able to help you with.
Until then, yeah we all want the quick and easy way, but sometimes you need to do a little research. You will find it gets you a lot farther then begging for some one to take you through it step by step. You also learn a lot more that way too!
Good luck in your overclocking endevers, and let us know if there is some things that you run into that you need some clearification or suggestions on.
I agree do some reading up at Toms then what we respond with here will make more sense to you. I had a GF2 mx400 and to tell you the truth they do not OC that much I gave up and got a new card. (mine was not too stable either)