ExtJs 4 Development (maybe some server-side too!)

Instead of going through all of the confidentiality formalities having you sign NDAs, etc. I will only reveal the “Functionality” needed for the app. In a nutshell, the app will have several features from gmail (rows of data and shift-click checkboxes) as you will see below. Use ExtJs as the main app framework! Whatever ExtJs does not have built in, utilize JQuery. Cross-browser compatibility minimums: IE7+, FF3+, Chrome 3+ and Safari 6+. All data exchange between client and server should be plain ajax passing json data. No REST/SOAP, etc. If you have good design skills, that will be a plussss! This is the smallest of 5 other very large projects I have to build. Seeking a long term, dependable, fast, good coding-practice development team! 1. Rows of data will come from an ajax call passing json data (you can create your own data). 2. Each row should have a check box next to it (furthest left column). You should be able to hold the shift key to select a group of checkboxes like in gmail (commonly known as shift-click). See these two examples: [login to view URL] and [login to view URL] . We will also need a checkbox at the very top and bottom of all data rows that would allow a user to select all rows. 3. Upon selecting checkboxes, just like in gmail, certain options will become visible at the top. When checkboxes are no longer selected, the options disappear. The options should also disappear after the user selects “delete, move, etc.” (which are some of the options) because there will no longer be any check boxes within the modified data rows. 4. Using a small gear icon at the end of each row (furthest right column), when the user clicks on it, it will open a tooltip that displays many other icons. Each of these icons, upon hover, will display the “task/action” of that icon. For example a star icon may display favorites when hovered, a heart icon may mean that you love it. If ExtJS cant do it beautifully, there's a VERY good tooltip library that I've used before that can do exactly this! [login to view URL] . The options-tooltip should stay open even after click any of the options on it. Only one tooltip can be opened in a data row table at any given time. The options tooltip should have a small close icon top right to close it. Clicking anywhere on the page (outside of the tooltip should also close it) 5. For now, the core option types are: • add to favorites [upon toggle-click, display “saved to favorites” with icon change. toggle-click again to remove from favorites] • add to… [dropdown of options –or- create new (which brings up a small popup window form. Main fields: title, description [save button / cancel button])] • add tags [small popup window; tag form field that will populate preexisting tags that can be x-ed out [save button / cancel button]] • add notes [popup window, notes field, rich text wysiwyg [save button / cancel button] • relate to… [Tab 1: popup window with search capability and live-grid of pre-populated data rows with checkboxes, Tab 2: Favorites with checkboxes, Tab 3: Public Suggestions [save button / cancel button]]. Save button will save all checkboxes from any of the tabs. Javascript will eliminate duplicates before passing data to server. • view comments (from others)[popup window like the ExtJs forums] • share this (social networks) • email [popup form window; fields: email address] • see related videos... • *** All popup windows should reference the row name / action being performed in its header area like [add tags] to [row name]. • *** there should be clear success/failure messages for each action for all options.