if they actually replace the solder on the chips (preferably with lead-containing solder)
you have no hope of getting leaded solder in europe now unless its from a really shady establishment as the stuff is now banned under rohs. but if you were to just reflow the chips and improve the cooling system a little you should be able to avoid it ever happening again. simply drilling the outside of your case and adding a second fan should ensure you never have the prob again, atleast as far as the gpu and cpu is related, the hana, ram and southbridge are all still vulnerable really