Reluctant to raise your fees, check out this article from CNNMoney.com on how to raise prices while keeping customers.  Worth a read.  Here's a taste:

Many business owners assume that any price increase will drivecustomers away. But consultants who work with small companies say theyoften under-estimate their pricing power. Those owners know their costsare rising but sometimes forget that fuel prices are soaring worldwideand that workers are demanding higher wages even in China, India, andother developing countries. Many small U.S. manufacturers, inparticular, become so focused on price competition with larger rivalsor foreign ones that they don't appreciate the value of the addedquality they offer, their fast and reliable delivery, or other superiorservices they provide - or could provide - to justify higher bills.

Hat tip to Barry Moltz.