hey i ebay quite alot, yes its relatively safe..
if you're buying products, always check the selling history of the seller you're buying from...
make sure he has at least >100 feedbacks with >95% positive feedbacks, generally, you should also scan through his/her selling feedback history and read what readers have to say about him..
ironically, the thing about ebay is not whether we trust them but its rather whether "they trust us (buyers)"
some sellers do not ship overseas, as places like Brazil has a high record of fraud..
however, you're always strictly reminded
NOT to buy virtual goods (eg: items from WoW// items from Diablo 2..etc etc)
DO NOT mail money overseas as they can always pretend they never receive your money
Ironically, you should never trust Singaporeans on www.ebay.com.sg: As i know of some idiots who put up their items just for fun and if the bid doesnt match their ideal price they'll just delete their account and f off.
Always email the seller regarding your queries before you actually bid
You should
always only pay for your items using
http://www.paypal.com as it offers Buyer's Protection (ie, if you pay and that schmuck never ships) for non-virtual goods (ie, items that can be shipped).
The drawback of ebay is the shipping cost, especially with bulky goods.
You are reminded that a bid is a legally binding contract, so if you bid, and if you happen to win... you must pay!
Well, ebay is fun.. so have fun with it.. hope you find this helpful