i guess to answer correctly because dave and reef took different directions...
what do the numbers mean?
Size 96x24x36 (360g) or 96x24x30 (300g)
size W x D x H (360g) or W x H x D (300g)
if its the first, where 24 is the D and 36 or 30 is the height, i would agree with reefgazer and go with 30 high because 36 will be a pain to access the bottom and clean, etc
if its the second, where 24 is the height and 36 or 30 is the depth i would agree with dave in that go as deep as possible, its really amazing the difference a little more depth can make on what you can do and how nice it looks.
glass would definately be best route to go, we just had a member give up on a 400ish because it was acrylic and ordered a glass. i know i wouldnt want the risk of scratching the acrylic everytime i clean