GSM, I echo Rowdie, depending on your debt (high interest such as credit card debit ) this is a good time to reduce that. I also concur with Sweeny and Maddog, since they are coins, some may have greater value than melt. Rarity and condition are the key factors here. I would venture to guess these coins were previously in circulation and not proofs or mint set coins. A quick check at online numistic sites would alert you to any that may be of greater value than melt. Your age and what your succession plans would also be a factor on what to do. 49994 also has a good insight, ask yourself, why did you collect them in the first place.
Or you could just say F&$k tomorrow and take jiffies advice. No one lives forever and you won't be able to use it on the other side.