The PSU has been going strong now for 2+ years. I would like to get a new one, but i'm saving for an i5. The added voltage for the overclock isn't that high, my calcs were a fair bit lower than 537 W. As for the dust... tell me about it, i hat just wiped the whole case clean 2 weeks prior to that pic, it builds up so damn fast. I can;t get hold of any filters without getting them imported from the US which is just too expensive. I tried using a pair of the wife's tights, but the dust built up so quickly on them that the fans had blown them off after a week. Thanks. I'm not sure where i can get a piece of thin aluminium to do that, but i'll keep my eye out. I'm not sure i could do it tho, as i have a fan down there that takes up a lot of the floor of the case. I think it'd look much better if i sprayed the inside black, but i don;t have any real space to spray paint as i live in an apartment and it'd be a full day project. Maybe when i upgrade i will wash the whole thing out and take it outside somewhere to spray.