Looking for good i7 memory

I am sure this been asked numerous times ..

But , I will be building my new comp soon ..

here is my list which I will be getting :
mb = Asus p6t v2
cpu = i7 920
case= cool master 932 HAF
hard drive = WD raptor 300gb w/partition win7 64 + winxp 32 (reason is because of some older games I like that will run on xp )

artic silver 5 thermal compound

now my questions :
is a cpu cooler needed with a modest oc of 920 to 3.2 or 3.4 oc ..... if so recommended ( thinking of Mugen 2 ) ??

Ram --- is so many " This the best " ,, well in the memory article here , it was the timings that made a diff ; as well as having at least 6 gb of ram ..
my 1st choice is :

Engineered for Core i7 Boards and Processors
mushkin 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model 998691 - Retail
Cas Latency: 6
Timing: 6-7-6-18
Voltage: 1.65V
Buffered/Registered: Unbuffered
Multi-channel Kit: Triple Channel Kit
Heat Spreader: Yes
Recommend Use: High Performance or Gaming Memory for Core i7/X58
Model #: 998691
http://www.newegg.com/Product/ProductList.aspx?Submit=E...

2nd choice :
OCZ XMP Ready Series 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Voltage Desktop Memory Model OCZ3X1600LV6GK - Retail
Cas Latency: 8
Timing: 8-8-8-24
Voltage: 1.65V
Multi-channel Kit: Triple Channel Kit
Heat Spreader: Yes
Features: Designed specifically for the Intel X58 chipset / Core i7 XMP Profile 1: 1600MHz 8-8-8-24 1.65* XMP Profile 2: 1800MHz 9-9-9-28 1.65V* XTC Heatspreader * Intel qualified specification ONLY for boards featuring the X58 chipset. All other boards will automatically boot the memory at 1066MHz.
Recommend Use: High Performance or Gaming Memory
Parts: Lifetime limited
Model #: OCZ3X1600LV6GK
Item #: N82E16820227388
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

so which would fit my needs the best .. ???

in case of u wondering .. I have these items which will come off of my current comp
850 w sli psu
2 - BFG 275 oc
dvd rw and dvd rom / may upgrade to a sata dvd rw/rom

thanks much for reading and responding
Is appreciated