On most of my domains ctr is generally between 10% and 20%.
On the few really good ones where the name gets typeins, and the keyword matches exactly what the person typing in is looking for ctr jumps really high. 70% to 90%.
On poor domains where traffic is coming from typo's looking for things like social networking sites ctr is lower. 5% This is a direct result of people really not finding what they're looking for. Very few spot something that catches their interest and follow through.
As for EPC, that is a factor of what your keyword is, and what area the name is in. Finance and realestate names pay high. Most of my domains are media related. Music, anime, movies, ect. They don't pay well at all. usually less than $.20 per click and often only $.02 for foreign traffic. You have to think about how much money the advertiser is going to make from the customer you send them to guess how much they will pay you for a click. Someone selling a dvd may only expect a $20-$40 sale so your cut will be fairly small. Someone selling a house may be in the $200,000 range so your cut gets a bit bigger.