how to play sound without being stored in temp

I have an important sound files
i need advice and directing
how can i use flash to play them only on site
without being downloaded to temporary inernet files?

I wase adviced to use flash media server
I saw the price of (Flash Media Streaming Server) it costs:US$995

is that what i need?

considering that the users may be alot

and if I purchased it ,and there is a site and room now available

is that ok and enough ?
or the streaming needs more costs?
I mean have I to pay only one time or there is other costs??
and can I learn rapidly how to deal with it?

sorry because I am a beginner and need that to much

on the other side
if I couldn't pay that price
how much of time is required from me to have a fair idea about the action script needed and how to deal with servers?

and from where you advice to begin?



also I like to ask about (Wowza Media Server) which is an alternative to FMS - some one told me that he found it to be quite good and it comes with lots of demo applications.

is that is as the same security as flash media server
and the files isn't stored in the temporary internet files?

sorry for that lot of questions and thank you

If for streaming it , you need one stream server fo couse, instead of the fms there are red5 too (its for free). Maybe you would like to visit their site for more info.