The most important recent court cases to me were Raich (liberals won 6-3), Kelo (liberals won 5-4), and Heller (conservatives won 5-4). So you can see how it seems to me as though the balance is a bit tilted already, and needs to be righted, so to spea
When you look at something from far to one side the middle always looks like the other side.
Those decisions you just mentioned are also victories for the neo-cons...not liberals. You need to get it out of your head that the current administration is somehow against big government. They are all about big government and complete control.
As it stands now, there are only two "liberal" judges that were appointed by democrats. The judges people like to call "conservative" judges now (Robert, Thomas, etc) are actually neo-con judges. Judges more indoctrinated into a political mindset and not that worried about fairness. You also have to remember that justices on both sides are very similar to congress in another way. When they know something is going to pass that they agree with but would tarnish their image they will dissent just to look good...as long as it still passes.
Scalia - Appointed by Ronald Reagan (R)
Roberts - Appointed by George W. Bush (R)
Kennedy - Appointed by Ronald Reagan (R)
Thomas - Appointed by George H. W. Bush (R)
Alito - Appointed by George W. Bush (R)
Stevens - Appointed by Gerald R. Ford (R)
Souter - Appointed by George H. W. Bush (R)
Ginsburg - Appointed by Bill Clinton (D)
Breyer - Appointed by Bill Clinton (D)