Few thoughts:
1) Save your money and invest in a set of microphone that will meet your purpose later, not now. I would recommend the AKG46x series, as they are inexpensive and can do what you want. If you go to get the cheapos, you won't be able to sell the cheapos and you'll eat that money. If you save the money, you are halfway there to your AKGs...
2) I have a set of small diaphragm cardioids I can sell you dirt cheap - I bought them for a project that never came to fruition: Behrigner C-2 cardioids actually. PM for price, etc.
3) Start saving money: don't eat lunch, break-up with your girl, sell your car and maybe a kidney. Once you start down the path towards the Dark Side, there is no turning back. You wallet will be sacrificed to the taping Gods...
Terry