Warning: If you are not competent or do not feel comfortable doing any of these modifications or procedures, then please do not do so. I will not be held responsible for any damages caused by a result of your actions. Now on to the fun stuff!

After putting up with the squeaking and groaning of the clutch, 2 years ago I had enough. UUC had just come out with what they called 'UHMW (Ultra High Molecular Weight polycetal) UUC Motorwerks Clutch Arm Bushings.' They claim that they 'permanently get rid of that annoying squeak and the side-slop.' Well, they do half of that. The solid bushings work very well to control the slop in the pedal when combined with a shim between the bushing and the clip. But they still have not permanently gotten rid of the squeaking.
About 6 months after install them with a little white lithuim grease they began to squeek again. So I removed them and regreased with high temp disc brake grease. About a year later the squeak is back. This time I used some of Red Line's CV-2 Synthetic grease with red moly. It is designed for 'extreme pressure' of wheel bearing and CV joints. Sounds like the ticket. Also says it's 'far superior to black molybdenum disulfide greases.' So hopefully it'll last longer than the high temp disc brake grease. In short, it sounds like the right grease for this application.

Now on with a few pictures.

Clutch Arm w/o bushings

Here is a picture of the brake arm with the factory bushings (they were squeaking too)
The clutch arm bushings look just like these.