Are you looking for cash in hand? If so, ebay, apmex, etc. are not your best option as they will be online transactions and you will likely have to wait until direct deposit/paypal/etc which will likely only arrive a day or two before payday anyways.

Honestly though, this is a terrible time to sell off! Personally I would go mow some lawns or clean gutters for $20/job to make ends meet....Selling precious metals for fiat currency is a very poor decision unless they are going to evict you/take your car/can't afford food, etc...but personally I would sell the computer you are typing on first...just my 2 cents.