Non Paying Bidder Losers

My auctions seem to be the pied piper of non-paying bidders. Is there anything I can do to weed out these deadbeats? I heard reliabid is good, but my auctions are for only a few dollars, so dont know if its worth it.

Help.

Do they all carry certain characteristics?

Such as all under 10 feedback, new accounts, etc.?

If not, then what about using BINs with immediate payment only? That way if they do not pay, your item is still listed for others to see (until they pay for it)

Good advice there man. Some are noobs. But i have had 1000+ feedback buyers reneg on me; powersellers should know better.