Umm...OK.
We can't really help you out if you don't know what you're looking for. 900Mhz, 2.4Ghz, etc? Answering machine required? Your definition of inexpensive?
This also may be the wrong forum for you, since this one is normally reserved for computer hardware. Perhaps add some more details and put it into the Off Topic forum (the closest we have to what you're looking for) and then see what people might have to say.