voltage?

[SIRCOOKS]

how would i know what size power supply would be best for me,im currently running a 300w power supply on my system, a p4 3.0 ghz, 1gb ddr ram, i dvd burner, cd burner, dvd rom, cd-rom, 1x80 gbhd, 1x 100 gb hd, 2x250 gb hds, radeon 9200 video card....do you think thats suffiicient, my power supply has the one fan, and i have one case fan, and an open grilled vent....i just bought thus blower............. http://www.newegg.com/app/viewProductDesc.asp?description=35-888-003&depa=0
and am about to buy this ... http://www.newegg.com/app/viewProductDesc.asp?description=35-888-604&depa=0&manufactory=BROWSE
i also have one of these to use....... http://www.newegg.com/app/viewProductDesc.asp?description=17-103-920&depa=0
what do u guys think...holla back....

[IAIHMB]

I was running a system with similar specifations on a 250W power supply just fine. :P The power supply you got, or are ordering (I forgot already :P) is the same one I just installed. If you have a small case you will need alot of zip ties because those cords from the power supply are really long and there seems to be a hook up for everything twice. :P

[SIRCOOKS]

cool, ill also show you guys something great what to do with those cords later on tonight, it has to do with cinvoluted tubing, ill take a picture of it with my digital cam and upload it...holla back