Hardware brand names

I want to learn about middle + high class brand names for
hardware for a PC
I know a few real famous ones that are real expensive, and not much =(
I'm new to computer and want to learn =)


CPU - AMD, Intel

Mobo - Asus, Gigabyte, MSI

RAM - Corsair

HDD - Seagate, WD

ODD - ???

VGA - HIS

PSU - Seasonic, Enermax, Thermaltake

Case - ???

This is all I know =(
I heard that Intel is better at overclocking or something than AMD.
But AMD is cheaper.

Asus and Gigabyte are pretty equal and MSI a little bit cheaper.

I dunno anything about ODD, mine's LG just cus I got my comp done
when I was in Korea.

VGAs, mine's a Geforce but its some another Korean brand only in Korea;;
I actually wanted a Radeon. I heard that nowadays Radeons are cheaper and better, is it true? like Radeon 4850, 4870, 3850, 3870, 4670 are the ones used for gaming I think.

PSU is the most important part of a PC right, and those are the ones I know.
That are real good power supplies.

I have no idea about case although it's another real important part for cooling and stuff...

So please tell me some decent brandnames for parts ; like i know super expensive famous ones but not so much of good but not so famous ones; =(

Here are some decent brands, apart from the ones you've already mentioned:

Motherboards: XFX, eVGA, ABIT, Foxconn, Biostar (TForce series)

RAM: A-DATA, Crucial, OCZ, Patriot, Buffalo, Kingston, G.SKILL, GeiL, PQI, Super Talent

HDD: Samsung, Hitachi

ODD: Pioneer, Lite-On, Plextor

VGA:
For ATI: Sapphire, Visiontek, Gigabyte, Force3D, ASUS, MSI, Diamond, PowerColor

For NVIDIA: eVGA, XFX, BFG, MSI, Leadtek, ASUS, Gigabyte, Zotac, PNY, Galaxy

PSU: Akasa, BFG (except ES-800), Antec, BGears (Straight-power series), be Quiet!, Corsair, Cooler Master (Real Power series), Enhance, Etasis, Fortron FSP, Gigabyte (Odin Pro & Odin GT series), Mushkin, OCZ, PC Power & Cooling, Sapphire, Seventeam, Silverstone, Sparkle, Tagan, XClio (StablePower series), Zalman

Cases: Antec, Cooler Master, Lian-Li, NZXT, Silverstone, Thermaltake

Thank you again for sharing your knowledge!
I've learned so much from you^^
My next PC is gonna be the best !