Hey all, I know from a few freinds that this site is freindly and helpful and just wondered if anyone could help me out ... Thinking of upgrading my PC, I am hoping to be getting a GTX 460 in the near future but in order to do so I am going to need a new PSU. My general plan is to upgrade my GPU and PSU but ensure they are good enough to follow on for the biggy when I upgrade to a DDR 3 mobo 
Could anyone suggest a nice quality cost effective PSU that would work nicely with a GTX 460. One other thing I am not confident in installing a PSU by myself as I am unaware on what connectors go where etc .. could anyone give me a quick run through just to ensure that i dont blow it up
( will I need to take my mobo out etc etc ..
Thanks so much guys, my current spec is pasted below shout if you need additonal info.
Operating System
MS Windows 7 Ultimate 64-bit
CPU
Intel Core 2 Duo E8400 @ 3.00GHz 43 °C
Wolfdale 45nm Technology
RAM
4.5GB Dual-Channel DDR2 @ 333MHz 5-5-5-15
Motherboard
ASUSTeK Computer INC. P5K SE/EPU (LGA775)
Graphics
M19W2 @ 1440x900
1024MB GeForce 9800 GT (Undefined) 40 °C
Hard Drives
244.14GB SAMSUNG SAMSUNG SP2504C ATA Device (IDE) 32 °C
244.20GB Western Digital WDC WD2500AAJS-08B4A0 ATA Device (IDE) 35 °C
Optical Drives
HL-DT-ST DVD-RAM GSA-H55L SCSI CdRom Device
VD3536X WQI155E SCSI CdRom Device
Audio
USB Audio Device

Could anyone suggest a nice quality cost effective PSU that would work nicely with a GTX 460. One other thing I am not confident in installing a PSU by myself as I am unaware on what connectors go where etc .. could anyone give me a quick run through just to ensure that i dont blow it up

Thanks so much guys, my current spec is pasted below shout if you need additonal info.
Operating System
MS Windows 7 Ultimate 64-bit
CPU
Intel Core 2 Duo E8400 @ 3.00GHz 43 °C
Wolfdale 45nm Technology
RAM
4.5GB Dual-Channel DDR2 @ 333MHz 5-5-5-15
Motherboard
ASUSTeK Computer INC. P5K SE/EPU (LGA775)
Graphics
M19W2 @ 1440x900
1024MB GeForce 9800 GT (Undefined) 40 °C
Hard Drives
244.14GB SAMSUNG SAMSUNG SP2504C ATA Device (IDE) 32 °C
244.20GB Western Digital WDC WD2500AAJS-08B4A0 ATA Device (IDE) 35 °C
Optical Drives
HL-DT-ST DVD-RAM GSA-H55L SCSI CdRom Device
VD3536X WQI155E SCSI CdRom Device
Audio
USB Audio Device