im running all this and i plan to overclock as much as i can out of it.

AMD 3200+ (venice core)
A8N-Deluxe SLI
1024 (2x512) OCZ EL Platnium Rev 2 Ram @ 2-2-3-5
BFG 6600 GT OC PCI-E
7700-CU HS/F
NEC 3500-A 16X DVD Burner
80 GB WD HDD
250 GB WD HDD


i was thinking about a 520W Powerstream but i dont want to over do it if i dont have to, i meen can i get away with a 450W?

Eventually i do plan on upgrading to a DFI NF4 and possibly two pci-e cards in sli but when im prepared to make that upgrade id upgrade the powersupply if necessary.

You will need to calculate your power budget first. Search the PSU FAQ in this forum for a link to one of the power calculators. Once you have determined you minimum power requirements, factor in what you want to add in the future. Dual SLI is going to require a pretty decent power supply. I know of two PSUs that are currently certified for dual SLI - Silverstone 650 for around $155 and a PC Power & Cooling for around $230-250. Other units can be had for less, but these two are NVIDIA certified.

Next, decide if you want to buy a PSU that meets yours needs now, only to have to replace it when you upgrade. It'll be cheaper in the long run to buy the best PSU your budget allows now and be able to use it for the future upgrades.

in short yeah that will be good enough just remember you get what you pay for

you know i have what is in my sig plus a chaintech 710 sound card 4 uv lights 3 120mm and 2 80 mm plus a Zalman 7700-CU HS/F
a cdrw, dvdrw one floppy
and i power a usb camera
all this from my X-connect 500w psu
it seems fine to me
but it isnt sli with a second card
i know some people have problems with this psu but i dont
just wanted to say that not all psu are created the same
i would get a larger one if i wanted dual card sli
but i hear everone say
bla,bla bla
about psu if you get a good name brand then stick around 550 or so