Powerful enough PSU?

[Lost.Prophet]

I am going to be buying this bundle:

Barebones Bundle AMD 64 3500, Heatsink and Fan, 512MB 400DDR RAM, Asus A8N32 SLI Deluxe Motherboard

which comes with a stock 400w PSU. I am adding 1GB of RAM and a GeForce 7900, 2 SATAII HDD's and a DVD writer. I understand that it is a stock PSU and won't be wonderful but I have heard stories of cheap PSU's killing motherboards and processors. Is this PSU suffcient, or should I buy a more powerful one? I haven't really got alot of money left, but if it is a neccessity then I will get one

If it needs upgrading, is this any good?

https://www.novatech.co.uk/novatech/spe ... -4m530&P=1 (https://www.novatech.co.uk/novatech/specpage.html?hyp-4m530&P=1)

[Taxation]

stock psu's are varied in their performance, eg. i had an antec 400W psu and it handled alot of hardware while some 500W psu's are rubbish and only put out 200W of power, i would suggest getting a new psu
that 530W hiper would do the trick

[Lost.Prophet]

Thanks, also I have heard that there is some problems with Maxtor SATA HDD's and nForce 4 motherboards... is this true, and do I need to return the ones I have ordered?

[Taxation]

there is a section in the hard drive threads with that problem
go look and find out :P