Partitioning, Storage, Raid & HDD Setup

[Cerulean]

Thread in collaboration with http://hardforum.com/showthread.php?t=1407839.

Right now I am still in a planning stage. What I am wanting to do is design an efficient partition and RAID layout. Firstly, you need to know my basic directory structure as of tradition:

First partition is between 20GB to 40GB and reserved for the Operating System, Drivers, and Misc-Minor.

Second partition allocates the remaining space on the harddrive with the following directory structure:
* Games
* Media
* + Audio
* + Images
* + Video
* Utilities
* Network (this folder is shared)
* <Internet Browser Directory>
* Temp (scratch disk, WinRAR temp directory, temp directory for many applications)

Now what would be the best way to do this? Where and how shall I partition it? This is what I thought:

Partition 0 (Drive0):
* Operating System

Partition 1 (Drive0):
* Desktop
* My Documents

Partition 2 (Drive0):
* Media
* + Audio
* + Images
* + Video
* Utilities
* + <Internet Browser Directory>
* Network (this folder is shared)

Partition 3 (Drive0):
* Games
* Storage

Partition 4 (Drive0 or Drive1):
* Temp, Scratch

Partition 0 (Drive 0) could also be physical harddisk of its own, with a partitions (individually) for XP32, XP64, Vista64, and Ubuntu. The only conflict would be having to do with Partitions 1 through 3 on Drive 0 -- having all operating systems bunker themselves onto such drive (except for Ubuntu/Linux). There are a few options with this too:

Select one operating system as my primary and all other operating systems as either secondary or tertiary. The primary operating system will use the above layout. Secondary operating systems will use the same and the same drive, but with different folder names.

For example...
* Assume that XP32 is primary.
* Assume that XP64 and Vista64 are secondary.
* Assume that Ubuntu is tertiary.
* XP32 (Primary) would follow the default structure on what would be Drive 1 (the original Drive 1 for Temp and Scratch would now be Drive 2).
* XP64 would follow the same structure, but there would be Games (XP64), Utilities (XP64), My Documents (XP64), and Desktop (XP64) folders.
* Vista64 would follow the same pattern as above, except folder names would be appended with (V64) or the likes instead of (XP64).
* Because Ubuntu is tertiary, everything will be in its "single" (there has to be at least two for Linux operating systems, right?) partition.

Or to summarize that with an illustration:

By the way, just a thought that I came up with:

EDIT :: Also, if I am going to involve this many harddrive, for the RAIDx setup it might be wise if I use 2.5" laptop HDDs to conserve space.
http://www.newegg.com/Product/Produ...E&N=2010150380 1035915133 4025&name=$25 - $50