Where to put Linux, Windows, Swaps, data, and Applicaitons on 2disk system

Hello,

I have a dual Opepteron with 1 SATA 80 gig drive and 1 IDE 160 gig drive in it. I will set it up as a dual-boot Suse 9.2 and Windows XP system. It will have 6 gigs of physical RAM. It will for all practical purposes be used to run one application only, when under Linux (MATLAB) or Windows (EMSE), to do large number crunching of 2 - 3 gigabyte data files. The drives will be on separate controllers.

I know for maximum speed, the swap space needs to be fastest, so I want to put swaps for both OSs on the SATA: 1 swap for Linux (12 gigs) and 1 swap for Windows (12 gigs) on first two parbreastions on the SATA drive (to be near the outer edge of the disk).

I've read that the swap should be on a different drive-controller from the disk accessed most, to avoid conflict over access.

My question is, which will be accessed most: the data, the application, or the OS? I would think in this data-intense environment, the drive with the data on it will be accessed far more than the application or OS, so I would tend to put the data on the IDE drive, to avoid conflict with the swap on the SATA disk.

But I have no idea if this is true, and have no clue at all whether the next-most-accessed thing is the application or the OS, and whether these should go on the SATA with the swap, or the IDE with the data.

Any info and advice would be very appreciated. Many thanks....

Jim