appendGrid compatible with several jQuery UI widget. It supports Tooltip, Spinner, Date Picker and Auto Complete as shown in following demo:

Album: Normal textbox with Resizable column header cell
Artist: Autocomplete (Input "s" to test)
Year: Spinner
Origin: Selectmenu
Stock In: Date Picker
Price: Tooltip

As of version 1.4.2, you can use UI Tooltip on caption and column header text! Please move your cursor on caption and the column header text `Album` to test it!