I'm developing my FLASH work on an MAC 800 with 768 ram.
However, when I play back on an avaerage pc laptop for demo, there's alot of lag time in the playback.
Two things come to mind:
a) low memory on the pc
b) huge file being demoed.
as the features of FLASH become more robust (video, better sound) I find the files balooning in size. The most recent project I did was 6 meg when complete. That's the one that delayed on playback. Not too good when the customer is looking for good, fast alternative to powerpoint.

Couple of different thoughts. Hope someone can help.