why r u running after RAID if you dont have server? making arrays of H/D wont bring any significant difference on ur system performance.
though for your inforamation:
i'm using same 10,000 RPM drive from W/D but on S-ATA interface.
and as far as RAID 0 is concerned, its available on Motherboard BIOS. if u have new motherboard, it'll show up RAID configuration. and RAID makes ur 1 hard drive totally unusable (menas 2 X 36 = u r left with 36 only, as RAID actually makes mirroe of hard drive on othe as well, used in servers, as if one fails, other works) there nothing special,about it.
Intel Core2Quad 2.66Ghz 12MB L2-Cache
4096MB DDR Kingston Hyper-X
XFX 9600GT AlphaDog
Seagate 2 X 320GB SATA2
LG L246WH Flatron 24"