To many code files on my Mac

[no.1 Apple Fan]

Hey All!
I have the developer tools installed on my mac. This means that I have all these useless (I think) extra files. Whenever I search for a file, I get hundreds, or thousands of code files. I have to dig through to find the file I am looking for. Is there any way to make all of these code files not appear in searches?

 

[Hellhammer]

Click the "File Name" thing because now it searches contents of file instead of name or just use Spotlight/Quicksilver

 

[Consultant]

System Preferences / Spotlight / Privacy

 

[no.1 Apple Fan]

System Preferences / Spotlight / Privacy

I've tried it doesn't work.

 

[no.1 Apple Fan]

Click the "File Name" thing because now it searches contents of file instead of name or just use Spotlight/Quicksilver

Ok, that reduces the clutter quite a bit. Is there any way to default it to that whenever I search?