Question: So I gonna make a USB bootable drive of Hexxeh's ChromiumOS Flow. I want this to be able to boot into it on my school computer. The computers use Novel network and each student gets their own login. 

Can I use my USB drive to boot into ChromiumOS from the schools computer? I don't need to access the files on my Novel Login. 

So can I even do this?

Answer: 
~~Well, it shouldn't matter TOO much, but using two similar strips of RAM would be recommended.~~

Just found you the Toshiba Qosmio G25-AV513 has a maximum support of 2 GB of ram so I would recommend buying two 1 GB strips or just use one 2 GB.
DDR2 modules must be used in matched pairs in modern systems.