Currently I have a PII-333 on a BX motherboard. I would like to upgrade to a PIII-600 as the prices are fairly low right now. However, I don't quite understand the 4 versions of the PIII600 and which is best for me. Which should or can I upgrade to? The PIII600, 600E, 600B or 600EB? I am also planning on replacing my 64MB of old 66MHz RAM with a 128MB strip of PC100 RAM. What processor would be best? Thank you.