OC Asus P4T533-C/Intel 2.53???

I'm a newbie in OC, but I've read af ew things yet and I'm trying to OC my
computer. But still a few questions.

My first question is if there is someone who as the same configuration as me
and overclocked his computer successful and with stability. I will give you
my configuration:

+ Asus P4T533-C
+ Intel 2.53 Mhz
+ Kingston 2*256 RDRAM ECC
+ NVidia GForce TI 4200 (64MB/500Mhz/DDR)

If there is someone, please tell me FSB, Vcore, AGP, PCI, Memory and
everything I should modify.

Another question now: "How do I determine AGP an PCI dividers and what do I
have to do or take in consideration of my memory?

Next question: "To find the best OC, I must do kind of trial-error. But what
do I have to change first? Vcore, AGP/PCI divider and at least FSB? Or in
another order?

Last question: " IS it intersting to modify the Multiplier on the modo? Or
is it better to change only the FSB?"

Thank you very much in advance!!

Jonas Andries