Nice to sitting on a goldmine, there are various tools around that you can use or else outsource a data entry person. A good one should have all the tools ya need. If they used pay.pal then can just dump from there...Tur'bo Tr*ansaction will work will paypal, there are o's plugins for outlook...

If you are soing ya own shipping every couple of days you need to get someone to add the data into something like gold*mine or similar programs. Not doing that you are leaving dollars on table for someone else...

They are buyers so first segment your list up in catagories. ex: this list bought xyz miniture doll, so group them together so you can sell them the large doll etc

Don't use your ISP unless you ring them and they are okay, or you will get trashed. If they are okay, then use in*spire as it allows you to segment you list and send out by ,geographical region, alpha's for first name, last name, email etc...allows you to import large lists from text (don't recomend) or cvs files. Also allow you to adjust the send rate...should be able to find nulled script around here...

What I would do is use company that allow you import large lists and bulk send. Not sure what Get Resp*nce policies are now but just 'google it' and when you find a good one, always ring them so they know what you are doing. You will find them helpful mostly. And at all times, refer to it as a customer list and you'll be right...also would recomend that you outsouce this and get someone to compile your lists so they are ready to import, yes list's' and if you have repeat buyer, stick them in a seperate list as well...

Just make sure you have a marketing plan for back end products....and you'll be a lucky guy/gal