Mark,
I've been using Ebay for quite a number of years and I have to respectfully disagree with you about the Buy it Now option.
This option is used to guarantee you win the auction, usually for a small premium in price. I use it all the time. If you are selling something, use this option, as it increases your chances of selling it, and many times faster and even may be a higher price.
Low prices are the nature of an auction- especially on used items. If they are absurd, be wary. But remember, many auctions start at ridiculous prices to attract bidders, but in reality will sell for quite a bit more...
I absolutely agree on avoiding check or money order purchases for anything large. For large items you should consider using one of the escrow services to protect both buyer and seller.
Be advised- credit card purchases made via Paypal do NOT give you the same credit card protection you get when purchasing directly with a credit card. Things like disputing charges, etc work differently. Be sure to read the options you have from Paypal before using it. (I use Paypal often myself)
One more piece of advice for Paypal. They require you to link to a bank account after a certain $$ amount (cumulative for all purchases). I suggest opening a separate checking account and keep a small amount of $$ in it for Paypal only. In the event of fraud or other problems, you won't lose the farm /forums/images/graemlins/blush.gif
-JC