my problem is, they haven't been responding to my email...
I think i will give them until monday. I read the shipping section of the item on the ebay listing, and it says "Will usually ship within 3 business days of receiving cleared payment ", the key word being usually...although the email I received on 8/3 said they would ship that day.
I know I am probably being more generous than I ought to be, but I think that if I get nothing (email and/or tracking number) by Monday, it would be reasonable to open a dispute that evening as 7 days have passed. I don't want to start a peeing contest threatening negative feedback, at least, not just yet...
Thanks for the advice though, It may come to that yet, but I hope not!