First, in my e-mail response to the seller, I provide my phone numbers as well as ask the seller to provide his/her number(s) (I usually indicate in my initial inquiry that I am not local). Once on the phone, the remaining details, form of payment - PayPal, money order, cashier's check, mailing and shipping addresses, etc. are hammered out.
When I send the payment, I e-mail or call the seller to let him/her know it's on its way, with a request that he/she let me know when he/she receives it. I also check on when the seller expects to ship it, and to please let me know when it is on its way (A tracking number is a plus, of course, for both of us).
Once the item is received and the package and contents are inspected for shipping damage, I call or e-mail the seller to thank him/her.
The only major variation on this is when a fellow Forumite local to the seller acts as an intermediary (when the seller doesn't want to ship it).
I hope that helps!
It is better, of course, to know useless things than to know nothing. - Seneca
I've only had one CL experience, that was my S/8 that I got recently. I was a bit concerned about it since I never had done a X-action from CL before. Fortunately it all went well. Hope it all works well for you, Tony. Send me the link also, I'm curious to see what you're looking at.