What kind of memory for a P3?

Hi everyone. I need some info about the folowing:
I run a P3 667@775 (155 FSB) on a asus CUV4X mainboard with 128 MB no-brand SD-RAM.
I set the FSB/SD-Ram frequency ratio to 4/3 (so ram freq. is 117).

I want to upgrade to 256 MB ram (in one stick), but have no idea what to buy. Is there ram that can savely do the full 155fsb, what are good brands of ram, etc.

I'am gratefull for all advice.

see ya!

If you can find it Tonicom PC-166 is the best, but Kingmax Tiny BGA PC-150 is also good....crucial as always is up there....just whatever you can get your hands on out of those three...

Crucial PC133 CAS2 will work!