File Server questions

[lpsitman]

I have put together a simple home file server PC to house all my hard drives for client use. I have built a PC with a 450watt power supply. It has 2 fans and also the CPU fan. I have one DVD rom and 4 internal hard drives.They range in size from 80gb, 20gb, 250gb and 300gb. My question is: What is the max amount of internal and external drives I can use before it gets too hot? Is my 450 power supply enough to feed all of these? Any help is appreciated.
Thanks

 

[HalComps]

id get maybe 1 or 2 more fans if your case can take them.

 

[electronicsfreak]

Also if you have room, keep a space between each one of them. Like skip one slot for every hard drive. That reduces heat quite a bit that way. What is the amperage on the +12v on this power supply? Also where are the fans located?

There is a point in wisdom and knowledge that when you reach it, you exceed what is considered possible - Jason Schoon