Waiting for my Peg II. Can't wait!

In the mean time...

How much memory is enough for:

Playing DVD and MP3's
Playing 3d games (QII).
Multiple apps running concurrently (Browser, MP3, email, Organizer, native morphos as well as 68k.)

I was thinking about either going for .5 or 1 gig.

Any comment are greatly appreciated!

Matt