I would love to see a rule change that is as simple as "cloture on a judicial nomination can be obtained by a vote of 2/3 of the members elected and present". That would still allow a filibuster on a nomination, but it would make it that the filibustering side would need to keep their people there, just like the side trying to get something through.
And keeping them there would be very, very sweet once we get into campaign season. I am sure that Senators Graham, Lieberman, Kerry and so forth would generate some hard feelings within their party if they tried to say "you guys stay in that room all day, I have fundraising and campaigning to do".