I'm done with all the components i'm going to get. I'm going to buy the -ASUS P5K3 DELUXE/WIFI-AP LGA 775 Intel P35 ATX Intel Motherboard - - -Intel Core 2 Duo E6750 Conroe 2.66GHz -Crucial Ballistix 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit -Raptor 150 GB -soundblaster -2 optical dvd sony rom burners. So, after 20 different people telling me to get silverstone, or pc & cooling I decided to roll with this psu: This ones modular and you can remove cables that aren't necessary to keep clutter 2 minimum. SILVERSTONE DECATHLON DA850 ATX12V / EPS12V 850W Power Supply - link: > http://www.newegg.com/Product/Product.aspx?Item=N82E16817256022 WHAT PSU IS BEST FOR MY SYSTEM? 1 RAIL +12V PURER POWER MORE STABLE I THINK. or EVERYONE SAYING GO WITH DUAL OR 4 RAILS, SO AS TO FEED THE COMPONENTS I.E LIGHTS , GPU, FANS THAT GO UP AND DOWN IN SPEED . PLEASE, WHIch way should i go... please, this is my last stumbling block to getting my pc! Thanks alot.... Nick. Read this on psu's and 1 rail or more :shadedshu http://www.overclock.net/power-supplies/167642-power-supply-guide.html Pleae enlighen me.....i've got to buy this buy monday.....!!