[AS2] Flah Chat Problem

[Godzio]

Hi,
I want to create a really simple flash chat that would meet the following requirements:
1. About 200 ppl chating at once
2. Only 1 general room
3. An Admin account
4. No registration required

Now i had ran into a few problems regarding point 1.
First of all can a normal server handled a session of 200 clients if the chat would be based on PHP and SQL only? Would the constant refreshing be to demanding? Is there a way to make flash get the data from the server only when an update occured?

And if it happended to be to much for a PHP+MySQL build, what other soultion could i use? XMPP? IRC? If any o these could you plese recomend me a library to use? (If XIFF then give ma good tutorial please i can not get it to work )

[Paul Ferrie]

You should be looking into something like flash media server, woza or red5 for this. php and mysql would not handle a 200 session per time per room