upgrading power supply

[sock88]

i have an emachines H6412 and i would like to overclock so i want to upgrade my 300w psu to something better
i found this:
http://www.factorydirect.ca/catalog/product_spec.php?pcode=PO0500

but i heard that emachines have smaller cases than regular ones
is there anyway i can fit this psu into my case?

 

[pctechmike1]

I couldn't see the back of the H6412, but from the front view, it looks like a standard ATX case, meaning the power supply you picked should fit. If you could post a pic of the back, where the power supply is, I could tell for sure. Dell has the same issues.
I'm wondering why this rig is touted as such a gaming machine, and they put a 300W PS in it? They should know better! You should upgrade the PS- no doubt.

 

[sock88]

heres a pic of the back:

 

[Gamingfreak]

looks ok to me