Local parish mags are the best print ads - £20 to £30 per month max and everyone keeps them till the next issue arrives.
Web site has taken off for us since Xmas, but networking is best value for money by far.
Keep close tabs on where we spend advertising money now, and it is surprising - what you think works often doesn't if you actually ask every custy where they got your details. Without this information, you can't judge what is good and what isn't. Log it and use it!