at last i have my new computer, brought from my neighbour for £150. i am soon to install 4gb ram instead of the 1gb that is in their. Would this require more power? and i have a ati raedon x550 graphics card, if i was to install a 8800gts at christmas time would a greater psu be recommended? btw: doesn't say anywhere on the psu which watage it is, only 230v input. thanks.