Watchlist Software/Scripts? - Premium Data (Fundamental)?

Hi all,

I'm looking at slowly (potentially one day) getting a share's watch list website together.

Does anybody know of any software packages that be readily bought that have watch list capabilities. - I mean though of course, ones to install on a website and not one that I myself can use. Perhaps 'scripts' is a better term.

Also I'd be looking at getting data for it of course, I was originally thinking Yahoo or similar for fundamentals as I don't know of any data providers that provide decent fundamental data? - Perhaps Morningstar DatAnalysis?

I could use Premium Data for price's, highs, lows, volumes etc but don't know if they do fundamental data?

I don't expect too many to know the answers to these questions, mainly the first one since its more computer stuff rather than investing. Though I would give it a crack anyway.

Thanks all