java/swing

hai friends,
problem: I have a JTable with renderers getColumnClass and editors isCellUpdatable. The column fields are boolean, String, boolean, Numeric and String. Now I should not display the checkbox in first column but once i select that first column cell , it should display only the tick(right) mark without any background and borders . again click should disappear the tick mark.
One more thing is, i should be getting a vertical line only for first column.
Any one Please help me out in solving this problem.
other features iam working on:
alternate row colors
sorting along with changing icons on column headers.
please help me out.
raghav
[email protected]