Get an iMac that'll last you til at least college. Then, I'd recommend getting an MBP for taking to lectures. Portability wins in college.
As my 8th grade graduation nears, I can either get a 24" 2.4 ghz iMac or a baseline MBP. Which do u recommend?
PS. I have never owned a mac and I plan to use it for my music games pigs and video. But no major editing.
MacBook Pro. The portability is much more important than the extra juice and REALLY big screen. You can always buy a monitor, keyboard, mouse, etc. and create a desktop situation. That's what I've done.