Thanks again chaps All good fun innit

I have an RS Components shopping list saved and the caps I've saved so far are Panasonic FK mainly, as these seem to have the highest ripple? I'm assuming that these should be over-specified for the demands the circuit will put on them. there are some Os-Con 510uF too which will be ideal for where they'd need to go. Can't order these bits just yet, but can't wait to get the volume control in at least