1GB of Infineon PC133 installed

Ok, I finally made the move to high capacity Infineon ram. Does anyone else out there have the same type of memory that I have? If so, what the highest Overclock you've gotten and what are the settings.

Model
-Infineon 512MB PC133 CL3 (2X Sticks) = 1GB

P.S, I'm looking to fill the third and last slot on my motherboard to give me a total of 1.5GB of ram, will it be worth the jump? I do play lots of total annihilation, Quake3, Aquanox and run a bunch of crap in the background.

Highest I've pushed it at cas2 was 141. I had to run 2-3-2 to get it to 142, and full cas3 to get it any higher.

Its not bad ram, just a bit limiting.