Need advice with SATA set up

[NJRuffy19]

Hi all!
I have an asus A8N Sli Premium and I just bought two WD Raptor 74 gig hard drives. Right now my plan is to eBay the two WD1200JD drives (120GB) and just get some money back. And with that money just get a large 300GB drive. So I plan on putting the two raptors in RAID 0 and then just using the larger hard drive on its own. I'm no computer wiz but I read the forums and am learning each day. What is the best set up:

1. RAID 0 WD Raptor 74 hd with 1 large capacity drive
2. RAID 0 WD Raptor 74 hd with another raid 0 with the two 120gb drives
3. _____________ (open ended)

My pc is currently used for gaming only but I also want to be able to have the file space for music movies and all that good stuff. I'm not sure if I have or even if its possible to have 2 seperate raid 0 drives? Or would that cause too much heat inside my case? I'm a noob learning so any help would be greatly appreciated! Specs are below:

Asus A8N SLI Premium
XFX 7800GTX Overclocked edition
1 gig (2x512) Mushkin blue series memory
Sound Blaster Audigy 2ZS <~~~~~ Plan on getting rid of this an just sticking with onboard sound because my voice keeps coming across garbled as if I was talking with marbles in my mouth in games (2nd card im trying with
AMD 3500+
2x 120 gig WD Drivers on RAID 0
Enermax 600Watt Noisetaker 2.0

[dirtydr]

unfortunately raid 0 will give you no real performance increase for the majority of games and may even slightly decrease performance. video editing (and similar "content creation") is where raid 0 arrays flex their muscles... well that and the ever popular benchmark game :D

you should be able to create multiple arrays on a single controller assuming it has at least 4 ports. iirc that board has two controllers, the first with 2 ports and the second with 4 so you have a number of options.

i'd go with
3. use them as seperate drives or
4. put the raptors in a level 1 array to safeguard against a failure

if you are not in a hurry to finalize your setup, try everything. setup a level 0 array and test it out. then try a level 1. that way you will know from first hand experience what is right for you. there is always the chance that your favorite game will be one of those that do benefit from a suicide array :)