Observe all the normal eBay precautions too:

Check the seller's feedback
Check shipping charge before you bid
Read the whole description before you bid
Be dubious if they only have stock photos
Make sure the seller will ship to your location

And then SNIPE that puppy!

Bid once.
Bid your max.
Bid as late in the auction as you can stand to.


Once a biddie, always a biddie.