Mutltiple OSX for Multiple Hardware T61 & X61T + Win7 on HDD

[crashnburn]

Mutltiple OSX for Multiple Hardware T61 & X61T + Win7 on same HDD

I have a 100GB 7200 SATA HDD lying spare from my T61 as I replaced it with a larger WD.

I want to use this HDD for several things together -

I want to install several partitions (not necessarily in that order):
- 1: Mac OSX SL customized for use in my X61T
- 2: Mac OSX SL customized for use in my T61
- 3: Windows 7 for use in T61 or X61T
- 4: Maybe a Linux or something?

Can I do the above?
If so, what order should I follow to do that and what things do I need to do..

MBR vs GUID
Order of Installs
Boot Manager / Loader / EFI etc.

Some high level direction would be great.