2x 250GB 2.5 WD In RAID-0

First Off My Current Configuration Is 1x 120GB 3.5" WD For My OS And Apps, 2x 80GB (Raid-0) 3.5" First-Gen Raptors (8MB Cache 1.5G) For My Games And A 500GB WD Green Audio/Video/Backup And VBox Virtual Disks Drive. I Have One 250GB WD 2.5" Drive And Have One More Coming, Both Are 7200RPM. I Am Considering Running Them In The Following Configuration; (Of-Course Keeping My 500GB In-Tact)

One 80GB Raptor - OS And Apps And The 2x 250GBs In RAID-0 For Games And VBox HDDs And The 500GB As Stated Above.

My Question Is Would The 2x 250s Be Faster Overall Than My Two First-Gen Rapors In The RAID?

If Not Then One Of The 250s Will Be Sold, A Third Raptor Will Be Added For A Triple RAID-0 And The Other 250 Will Become The OS/Apps And Vbox Virtual Disk Drive.