Thanks very muuch for all the replies and advice. I do have a spare 400w psu that it is almost new here, but since the psu in the computer (quad core) win 7 4 gb ram is a 600w psu I would probably think that the computer would be underpowered and wondering if the 400w would do it any damage in the long run?

I also hear that the Antec brand is also very good.

Thanks
Joe


joe