SEO Scripts

Hi all . Iam starting an search engine optimization tools website. 1) Iam looking for a meta tag analyser script like the one you can see at [login to view URL] Its a script developed in perl and is a bit costly too..I need a similar one in php so If you already have a pre developed script .. please post it here with an online demo and price or post your bid for a custom made script. 2) If you have other seo tools scripts .. kindly post it here with an online demo and their price ..i will buy the tools if i like them and if your price is reasonable. Its a combined project which includes both the meta tag analyser as well as the other seo scripts if you [login to view URL] budjet range is $20 - $100 per script based on the complexity of the script. Thanks Partha