An inexpensive super-cardioid to try would be the MXL (otherwise known as Marshall) 603s. They are usually around $90 a piece and are made in China. However, they are very high-quality mics. I got turned on to them by the engineer who recorded our two albums, who has every kind of expensive mic you can think of.
I've been using them as drum overheads, as a stereo pair for simple ORTF micing, as Leslie mics, even as acoustic guitar mics. They sound great! They need phantom power (being condensers) and they have a very high output. There is also a modification you can do to them to make them sound even better which consists of changing a cheap capacitor on the circuit board to a higher-quality, higher tolerance capacitor. I haven't done it yet, but I've read it makes quite a difference. However, for live work, I wouldn't worry about it.
If you're interested, PM me. I can get them very cheap.