Where can I buy silver/gold with BTC?
I'm to lazy to search for sites and most sites seem to have a 1-2 week delivery delay?
Is there any site that doesn't have such a great delay. The site must also be trustworthy of course

maybe you should try bitgold, I never bitcoin deposits there, and pretty quickly, but I've never bought a silver or gold, and I do not know whether the shipment is late or not

FYI bitgold.com is gold only (not silver). Silver takes up too much storage space and thus not cost effective for them.
I highly recommend them though, it's run by a huge online storage site called goldmoney.com (both gold and silver storage). Look up "James Turk" and listen to some of his interviews fist, then make your own decision.
Online website and iPhone app make it super easy.