Need some help, what memory out of these

http://www.newegg.com/app/ViewProductDesc.asp?description=20-145-440&depa=0

Corsair Value Select (Dual Pack) 184 Pin 512MBx2 DDR PC-3200 - OEM


Model# VS1GBKIT400
Item # N82E16820145440
Specification
Manufacturer: Corsair
Model: VS1GBKIT400
Speed: DDR400(PC3200)
Type: 184 Pin DDR SDRAM
Error Checking: Non-ECC
Registered/Unbuffered: Unbuffered
Cas Latency: 2.5
Support Voltage: 2.5V
Bandwidth: 3.2GB/s
Organization: two 64M x 64 -Bit
Warranty: Lifetime

or

http://www.newegg.com/app/ViewProductDesc.asp?description=20-156-020&depa=0
Kingmax SuperRAM Series Dual Channel Kit 184-Pin 1GB(512MBx2) DDR PC-3200, Model MPXD42D-2 - Retail

Model# MPXD42D-2K
Item # N82E16820156020
Specifications:
Manufacturer: Kingmax
Speed: DDR400(PC3200)
Type: 184-Pin DDR SDRAM
Error Checking: Non-ECC
Registered/Unbuffered: Unbuffered
Cas Latency: 2.5
Support Voltage: 2.5V
Bandwidth: 3.2GB/s
Organization: two 64M x 64 -Bit
Warranty: Lifetime

I can't comment on performance, but I JUST purchased the VS1GBKIT400 from newegg... I like Corsair

what are u going to run the memory on?????