Howdy!,
Don't use a reserve price, bidders don't like them, set a starting price that you can live with, and you'll get more bidders. Plus if it does not sell, you'll have to pay a % as if you did sell it. I have relisted things and sold them for more with the reserve removed than when it had a reseve price auctions.
If you don't put how much shipping is, they are going to ask, know what it weighs & size before you list it, their going to ask. I inflate the shipping by no more than $2.00, it'll never be the same when you actually ship it. I don't make money off shipping I charge actual shipping costs.
I only except Paypal, cashiers checks, I will take a personal check, but I have to sit on them in the bank for a week before it clears, their bank. I do the same with cashiers check, money orders, postal checks, Make sure they clear BEFORE you ship!
If you have more then one of anything sell one at a time, you'll get more the if you say you have 2, 5, 10, etc.
Do 7 day listings, more people will see it I don't end auction in the mid days, I like about 7:00 pm west coast, 10:00 east coast to end at. and not on friday nights & saturdays (night is ok), more people are gone or busy during the day, or during shows like Idol, they forget.
I sell and buy on Ebay all the time.

Good Luck!

Pat