I thought their might have been an entirely virtual way to do it but obviously not, I'll take the casing off tommorow. Thank you.
If you change the drive letter on the system drive (the one with WIndows on it), You are probably going to break the OS, and almost certainly all of the software pointers.
Actually, I always put the smallest drive as C anyway. Install Windows on the small drive, and use the biggest drive for my games\data\apps\downloads. That way, if I do need to reinstall Windows, then it's on it's own drive and I dont have to worry about data loss.
Ye that is right one drive is always (phisically) master and one slave!
However, you can swithch drive letters (names) without having to change phisical master-slave positions. Use drive mapper that comes with Power Particion Magic, It will allow you to change drive letters and then update all the references so the software already installed won't collapce.
The only thin you can't simply swap C: and D: at once, you will need to play around with the leters a bit; lets say change C: for F: (so C is relised) than change D: for C: and than change F: for D:. after that just run the drive mapper and tell it to update all the references for drive C: to drive D: and than the same for D: to C:.
Hope this helps.