I just upgraded bits of mine and had a 500W 4 year old PSU left over -
Its still only £12 on Ebuyer but someone paid £7 inc postage for it:bannana:
It costs 10p, its worth 5 mintus of your time just to clear it out if nothing else
PS old RAM is scare these days - you'll be amazed at what goes
( I got rid of a graphics card, - not top end - a PSU, a CPU and Fan, monitor and didn't give them away..)