screen protectors

Palm Pilot ones made by Delkin work well, but are not perfectly smooth and clear.

I got one for a computer screen and cut it down for my touch screen Garmin GPS. That is perfectly clear. Unfortunately my son cut it off his screen protector and I did not get the brand name. Available at Micro Center.

I just leave the Nikon one in place on top anyway.

I get GGS Glass Screen protectors from goshotcamera.com. They are multilayered and multicoated and give a very clear view of the LCD panels. Takes 30 seconds to apply one to the camera and they do make them for the D300, $12.45 plus USPS shipping. I have one on my D60 and D80 and they are great. Mine came with in 3 business days from the date of order.

I'd look at the Giottos from somewhere like B&H. They're high quality Schott glass, coated and I've got one on my 5D and really like it. ±$30.

I used to use Box Wave and Invisibleshield, but now I prefer the ones sold by screenpatronus.com. They offer high quality screen protectors at a reasonable price. The only difference is that screenpatronus.com advertises less than the other two, and maybe that is why they are cheaper.