Need Power Supply Help

[pugsy01]

I am looking for a Gateway 145 watt U-ATX Form Factor power supply.
Does anyone have any ideas on where I might can get one reasonable.
Also does the form factor mean anything ?

 

[RealBlackStuff]

Try this: http://www.compusa.com/products/product_info.asp?product_code=50143968&pfp=BROWSE

or do a google with: micro ATX power supply
Form Factor must be ATX, meaning it is one that switches off when you shut down Windows.
The U stands either for Ultra or (Mu)Micro.
Measure your current PSU to get the right size replacement.