Custom Post with Default Content

Hi

I’m creating a unique website and I need to allow users to submit a single piece of information that will become a post title.

Other values that are normally in a post will be giving a default value i.e. form and tags.

The form will also have hidden fields to be submitted as Custom Fields. This includes a custom field that indicates the post is not a normal post as the blog will also have normal posts. Another custom field will be the same value that is entered into the post Title.

The form will need to validate the value submitted as it is a very specific formatted bit of information i.e. URL or EMAIL.

So I need some advice on the best way to do this. I tried TDO Mini Forms plugin and it doesnt work. Not only that there just did not seem to be any options to make a field suit a certain format.

Help would be great as all the code I have looked at looks very long and stripping it down might be a waste of time if someone can point me in the right direction to start with.

Thanks
Ryan