haha no deliberate advertisement, Its just i got the kits from smash so i thought it best make that clear to avoid confusion. I've just had a look at the c64 PSU circuit and you are right, it makes perfect sense to get myself an old C64 and use the PSU and connector from it even though it does seem a shame to pull a c64 apart. I ordered my SID from ebay so Its kind of like eating meat, where I didn't have to kill the cow (computer) myself ;)