Building your own MVC framework will really help - as you will have to think a lot before you write your code. Since you know what you want to build - you will be in a position to work on MVC features that you need for the project.

Once your project expands - you will also know how to tweak it for performance and additional features.

I dont understand the meaning of clean URLs. If you are referring to SEO URLs - then its done through .htaccess. I have made extensive use of it on my site www.careercurry.com. Let me know if you need any help with regards to .htaccess

Regards,
Suniil

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