Do you think it really matters how huge of a PSU you install though? I've never opted for the monsters but I did have 1 kid I built a video machine for want the huge one, but I don't think it made any performance differance at all.
yes, there is a difference in the power handling capabilities between PSU's. Other than product specific items such as the removable cables Teddy speaks of, there is a major increase in the ability to add peripheral devices which consume more than 100mv ( most digi cameras, video cams, HDD's scanners etc) and to operate power intensive internal devices such as video cards. The "performance difference" is with the power handling, i.e. ability to handle and operate multiple devices all consuming more power than the original 250- 350 W PSU's can handle. It is not perfomance measured by speed of processing or how fast applications perfom a certain task.
IF you are building the machine yourself, be sure to buy a case that has room for expansion and does not cramp your ability to replace or add components.
this is the case I bought for the PC that Kindms designed and helped build with me. ( he did 80% of the work,
)
http://www.coolermaster-usa.com/Products.aspx?pid=634This is the hardware list: pretty simple. This machine was designed to transfer and process large files.
SAPPHIRE 100561L Radeon 9600PRO 128MB DDR AGP 4X/8X Video Card - Retail
Patriot Signature 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Unbuffered System Memory Model PSD2G400KH - Retail
Seagate Barracuda 7200.8 ST3250823AS 250GB 7200 RPM Serial ATA150 Hard Drive - OEM X 2
PLEXTOR Black IDE DVD Burner Model PX-740A-BP-BL - OEM
COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel, SECC Chassis ATX Mid Tower Computer Case - Retail
Antec 430 W ATX12V PSU
ROUND CABLES
Motherboard Intel® Desktop Board D875PBZ
Chipset Intel® 875P Chipset
The D875PBZ has: 800MHz system bus with dual-channel DDR-400 and native SATA 150.