Power Supply Help

[SmyPh]

I want to replace my power supply, it makes a horrid buzzing noise now and then. I need to know where to get a new one at a good price? Any help?

Does this look like a good deal: http://www.dvwarehouse.com/products/20361.html
Can I find it cheaper elsewhere? Where?

Does it matter if you get a max watt size that is higher than what you may need? Also, how exactly do I tell what max watt I do need? Does having a lot of peripherals hooked up put a strain on the power supply requiring a larger max watt?

Thanks for any help!!!

 

[belvdr]

That's the cheapest I've seen a PSU for an older Apple. The one for the Digital Audio runs about that much as well.

If you're good with soldering, you could replace the fan in the PSU, which is most likely causing the noise anyway.