Tips for bidding:.
1. Look up the lowest retail for the item you want to purchase.
2. Search eBay Auctions for the item(s) you want.
3. BID YOUR MAX BID for product. In other words, if the item retails for lets say $150, you might want to max your bid for UP TO $125. This means if the last bid is $75, you will win the auction at that price! This way your not spending day and night watching and wondering. If someone pays more, so be it...don't OVER BID!
Ending times: Some sellers make an error and end the auction on say a Tuesday morning at 10:30 AM...Most people are busy at work and can't think about an auction on eBay. Look for oddball times, weekday nights etc. as well.
Sample Auction Listing Page On eBay.