Go with Brando http://shop.brando.com.hk

I always used them starting from my old Tungsten E through Sony TH55 (still here), 770 and finally N800.

If you do not mind losing a (small) brightness, buy the "standard" one, which is unreflectable (bleah! Sorry for my bad english), ultraclear one is good too, but it reflects as the Nokia stock protector, which IMHO sucks.

Omar