So I can't decide. Do I want the screen space or the portability? They're not that different but every little bit helps. The money isn't a huge issue but hey, who wouldn't want to save money.
The other option is to wait until October/November and buy a new Macbook or Pro when they release Leopard and hopefully another Hardware update... I currently have a 12" Powerbook that has always served me well -- I just can't take tests on it in LS.
I have a matte screen on my powerbook and I like it a lot. However I'm not really sure what a glossy screen looks like since I don't have one. At the Apple store it appeared the Glossy screen was much brighter and had richer color.
LSU is the more conservative school, indeed. If you want to stay in Louisiana LSU is your best bet. Personally I wouldn't pay $40k to go to Tulane when I could pay $11 to go to LSU, it's practically the same degree, for me at least.