What are you building? Or are you just looking for parts? I have a few friends here in LA that have upgraded and might still have their T300's lying around. It's the same, right?
If it's the case you want, try a 180 or 300. They are the same case as the 270 andthe 180 is easy and cheap to find. It's really, really easy to replace them.
Go to Ebay...they have tons of things like that and the prices are good.