help a newcomer

[Lev]

here is my hardware

p5n-e sli (asus 650i)
http://www.newegg.com/Product/Product.asp?Item=N82E16813131142

CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800
http://www.newegg.com/Product/Product.asp?Item=N82E16820145590

CORSAIR CMPSU-520HX ATX12V v2.2 and EPS12V 2.91 520W Power Supply
http://www.newegg.com/Product/Product.asp?Item=N82E16817139001

e6400, 8800gts 640mb (evga)

nzxt apollo case

also i have a audigy se creative sound card

---stock fans(2x120mm and a third coming, planning to install the popular scythe infinity using the forum guides(they rock) but first a few questions

1. will the scythe infinity fit in this case with this mobo?
http://www.newegg.com/Product/Product.asp?Item=N82E16811146025

2. assume i have no money for replacement parts and put yourself in my situation, how would you overclock this setup? i really want to OC my cpu, everything else is second (safety is important, i REAALLLY dont want to set my cpu on fire, and first assume i am using stock cooling then suggest more if i do get the scythe infinity)

(NOTE: i am new to OCing, and if i say something stupid forgive me :P)

my 3dmark06 score is 8111 and i am unsatisfied with this......

thank you

[KingThot]

As far as the overclocking goes looking to the sticky is all you need:
http://www.xtremesystems.org/forums/showthread.php?t=57148

[Nerfy]

The Infinity will fit fine.

[Lev]

The Infinity will fit fine.
you have tried this yourself?
the tuniq is smaller then the infinity right?

[Lev]

if i want to hit say.. 2.8 gigs with my e6400 and my ram is ddr2 800, should i do the 1:1 fsb to ram ratio thing and tone down the multiplier to 7? or should i keep the multiplier of 8 and just do the 350MHz FSB keeping the 400 MHz ram speed?

[Nerfy]

No, haven't tried it myself, but neither the case or the mobo are unusual formats/sizes, so you shouldn't have any problems.

Higher FSB increases overall system performance. So drop the multiplier and go for 400 FSB.