How much memory does Halo 3 exactly require for the 360?

[Smiegel]

I need to know so i can decide to either get the 256 MB now or wait for the price to drop a little more for the 20 GB.

 

[XeLiTheNiNjaX]

to save a profile i'd say about 300kb so you'd be fine with a memory card. but then when you wanna save multiple profiles, videos, snapshots, downloaded maps from the marketplace, that's when you need the 20gb hard drive.
just recently xbox had a price drop
xbox (arcade version): $199
xbox premium (w/ hard drive): $299
xbox elite: $399

you can get a xbox a little cheaper if you buy it refurbished, but i would recommend getting a warranty with that.