cheap does not really go with efficient and silent with psus
http://www.overclockers.co.uk/showpr...odid=CA-007-TG
http://www.overclockers.co.uk/showpr...odid=CA-000-SS
hiper do a 350 watt for around 20 quid thats very quiet used one the other day (its 20 pin but just buy an adapter) does it have to drive a gfx? if not you may well get away with it
http://www.eclipsecomputers.com/prod...code=PSH-3S350