Compiler construction tool

Im studing the best tool to develop this compiler.

I've seen the Coco-R for C, CppCC (which is a source forge project) and other two tools, but I'm opting to use the Bison+Flex tools, because they are very very common and every one knows how to use them, which turns easy the task of get a partner to help me on this project. :)

This project seems to be stopped, but I'm really studing the best tool and planning the best way to do this compiler.

I think that in a couple of months we have the first first alpha version to post.

If you have any suggestions, or if you are with some free time, send me a message to know what you can do to help this project.

Thanks, Jose Antonio.