you seem to know what you want....what exactly is your question?..
I will throw some advice and attempt to answer you....the best harddrives for the raid 0 array would be (2) western digital wd800JB's....if your motherboard has onboard ide rain controllers then you are set....if not then I fully recommend the Highpoint dual channel Rocketraid 133 pci card...I had outstanding drive performance from this setup!
I'm just disapointed that it's going to cost $40 just for this one extra feature. The only boards with built in PATA controllers are the high end ones. SATA to PATA converters are expensive. Add-in card. There all about the same. I was hoping someone knew something I didn't. $40 would be better spent elsewhere. RAID just isnt going to increase performance enough (gaming PC) to warrent the extra cost.
Your options are to either get SATA to PATA adapters confirmed compatable with your board (expensive), or get a IDE RAID controller card (cheap). You find Silicon Image RAID controller cards for around $25 at various online venders.
<font color=blue>Watts mean squat if you don't have quality!</font color=blue>
yes you are correct...you will not see a performance increase in gaming just out of running a RAID setup....but you will in some other enviroments....I do wish mobos still came with IDE raid instead of them all converting to serial ata raid onboard