Long Position on Silver and Gold?

[NFATrustGuy]

Can anybody recommend a monthly buying program? Ideally, I'd like to find a place where I could send a check each month to buy 1oz. silver rounds on the 10th of each month for X% over spot price. These rounds would be accumulated until I reached a certain level and then they'd be shipped to me once I reached a minimum for free shipping.

Of course I'm concerned about finding an entity who's trustworthy and doesn't charge some ridiculous premium for the service. I'd also want reasonably low minimum accumulation requirements for free shipping because I really don't want somebody else holding MY silver until I reach a bazillion dollars or whatever.

My concerns/goals are: (a) I'd like to automate the process because I know I'd be more likely to get it done, and (b) I feel like shipping adds considerable expense when we're talking about less than 100 ounces at a time.

Thanks in advance for any advice...

BTW: I've Googled this and it seems like everything I've found has some sort of catch. Once place buys and accumulates it on paper for a very small premium over spot price, but then charges you 10% to have your account converted to actual silver and shipped to you. Not a deal. Another place charges basically double the going rate over spot, but will ship it to you for free when you reach 100+ ounces. Their premium is so high, I'd be better off just buying from Provident or wherever and just paying the shipping charge.