#1) How long do you expect for a payment to arrive to you from items you sell?
I can't remember the rules but I think eBay gives the buyer 14 days to pay for items they purchase, however I know some sellers have their own time periods they expect payments to arrive to them. Personally I do not mind waiting 14 days but any longer than that and I feel the buyer is just screwing with you or something.
I state in my auctions that I give 10 days for a buyer to pay for the auction. However if it's an international buyer then I state 14 days. After the 10 days pass (for domestic buyers) and I still haven't received the payment then I send a friendly reminder about it. If I still do not receive an answer or receive the payment by the 15th day then I file a UID with ebay and relist the item.
Does this seem fair to you?
#2) How do you feel about '0' feedback bidders who bid on your auctions?
I'd love to have them bid but it seems like the ones that have bid on my auctions have never paid for the items they win. I USED to ask in my auctions that if any zero bidder wishes to bid then to please contact me first about it just so I know they really want to bid. I don't know, it's something I feel that if someone is just screwing around with ebay auctions then they wouldn't take the time to send you an email about bidding for you item. At least it would seem that a person who really wants the item wouldn't mind emailing you an inquiry. Wow, seems like I'm babbling!

#3) How do you feel about a seller placing a statement/request on their auctions pertaining to all the above stuff I just asked about?
I want to do this with my auction pages but I don't want to come of as being to strict or seem like a meanie. HOWEVER, as a seller I am really starting to get peeved with some buyers.