Comparing search engines top 10 side by side?

[DiscoStu]

Since the launch of bing I've come across some tools that compares the top 10 search results for several search engines on the same page. Though they were meant more to compare the efficiency of different search engines, I found it very useful in checking the overall search engine landscape for specific terms...

I'm wondering if there's a tool like this specifically geared towards researching the serps...ideally it would be able to do the following
- add/remove search engines to be displayed
- specify how many results to display per search engine (1-100)
- Visually indicate when the same domain/url pops up on multiple search engines (with colors/connect with a line etc)

Trying to figure out if I need to put together this tool myself or if it's already out there (I have a vague memory of coming across some tool long time ago that did something like this)