Mem Upgrade for G4 PC133- Compatablity Help

[DigitalAides]

I have this old Power Mac G4 that only has 256MB of RAM in it right now w/2 slots left.
Does anyone know of any way I can find a list of compatible cards?
Here are a few specs, not sure if they are all important or not:

933 MHz PowerPC G4 2 MB L3 cache
256 MB SDRAM (PC133-333)
Bus Speed 133 MHz
Boot Rom Version: 4.3.3f2


Id just like to get like 2 sticks of 512 that will be compatible on this Mac. I dont think it will handle any 1G sticks, but please let me know if it can.
Thanks.

[Case]

Everymac.com lists the Power Mac G4/933 QS as needing "168-pin, 64-bit-wide 128-Mbit or 256-Mbit 8ns PC133 SDRAM (3.3v)". This Mac has 3 RAM memory slots and the motherboard understands upto 1.5 GB of RAM.
Googling for PC133 SDRAM, I found that SDRAM PC133 comes in 128MB, 256MB and 512MB flavors, so with 512 per slot you could max out this machine.