Guess so
My big friends is RegExBuddy.
Basicly a tool to help you create regular expressions. But it also has grep functionality in it.
You can search (and replace) using regular expressions.
http://www.regexbuddy.comThe author also made PowerGrep, a much more powerful grep tool, but it's a lot more expensive. RegExBuddy is real cheap, and a must have if you ever want to play with Regular Expressions.