first of all, welcome to macmod! Glad to see you are participating in the forums. What kind of case do you plan on using? If its large enough, you can get some other fans that might be a little more powerful. I am gussing that you will be puttin the components in a somewhat larger case and laptop fans might not be powerful enough to circulate enough air.

centerstage is a great gui, would be a nice choice.

Yea, I am with maestro on keeping the bottom case if you have it. I would lose the modem, speakers, keyboard, top cover, and lcd. A nice integration of a slot load superdrive would be sweet.

Still thinking of ideas, might post more later.
"Fix it 'til it Breaks."

Jacob - EiC & Director of Technology
Mac Pro Quad 2.66 - 4GB RAM
160 GB SATA RAID 1 - 650 GB Storage
Quad 19" Widescreen LCDs
Accessorized to the Hilt