Yahoo Auctions?

I'm looking at some stuff from Yahoo Auctions, and i noticed that the prices on some things are Ridiculously low, i was just wondering if anyone has dealt with the site before and what to watch out for, especially when purchasing bigger ticket items. I didnt see anywhere that you can pay by paypal, so its not like ebay in that way. Any advice would be appreciated. - Thank you

http://auctions.yahoo.com