Introduction

I have stirred up some interest with investors due to some of my activity on talkgold.com. WARNING: Do not invest in any programs listed there as most, perhaps all, are scams. I learned this the hard way!!!

Anyway I have had some discussions with investors that led to the idea of creating a merchant tool/plugin for all major shopping carts (magento, zencart, opencart, bigcommerce etc). The benefit of this tool is merchants can easily choose either BitPay, Coinbase, Mtgox or direct with blockchain api.

This is going well and our developers are finding it very simple. The price for one shopping cart plugin for testing sample was cheap and final quote for 12 shopping cart plugins is a lot less than we expected. Therefore we can afford to take this to the next level and add another or even several coins.

We just need to be steered in the right direction so that all development funds are spent wisely and there is minimal wasted time and money.

Main Question

Which coins should we include and why?

Other Questions

Would it be wise to only have one or two other coins besides BTC? If so which one or two or as many as possible such as LTC, PPC, TRC, NMC, NVC and FTC ?

Are there any other coins that should be considered?

Thank you for your time reading this, all replies will be appreciated and will be considered in great detail.