unfortunately for coolmax you can get the ocz modstream, corsair CX v2, antec neo eco, and antec earthwatt all in the $40-70 range. those are all better PSU.
Pre 2006, those options were not there. That is why I said "historically". But even today you can find a niche coolmax unit that does a good job at a good price.
I was looking at this one. Its a 600 watt power supply for 40 bucks. I plan on playing games with this computer.http://www.newegg.com/Product/Product.aspx?Item=N82E16817159079
And no, that is not a unit you would wish to purchase.