Replacing power supply for HPE-519C computer

[rocks911]

I own a HPE-519C PC: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02896278&cc=us&dlc=en&lc=en&product=5155964
and want to change the power supply to something more robust. I have never done this and not even sure the questions to ask, but here goes...is this pretty straightforward, I mean just unplug, swap and plug or is there more to it?

Can I just use the wiring that I have now? Doesnt a new wire set come with a new power supply?

Sorry about the basic newb stuff, but I've gotta start somewhere.
By the way, I use this mostly as a server and have 4 internal HDD's connected, so it generates some heat and I also will be adding a better case fan so I want to be sure that its sufficiently powered and the 300 watt supply it came with seems kinda weak.

Thanks in advance for any help.

 

[rocks911]

So I'm left wondering if there is maybe another forum where newbs can get questions answered?

I posted at Toms hardware also and nobody responded there either. Clearly there are lots of people who view and post here that have a comprehensive knowledge of PC components but for whatever reason dont respond to a fairly simple question.

Seriously, is there a place that newbs can get help, I mean the posters that daily show off their deep knowledge of customizing PC's must have learned somewhere, right?

Where would be a good place for newb questions?

 

[Ruffy]

it has a standard connector(some hp's dont)

Just buy swap and replug in.