Selling on Ebay for over 7 years, I have come to believe that the auctions that look more professional and "pleasant to the eyes" ALWAYS, ALWAYS, ALWAYS outsell others. When someone is shopping around for a particular item, and they land on your listing, you only have a few seconds to "wow" them or "grab their attention". This is why I firmly believe in professional looking templates for your auctions. You will definitely see an increase in your sales, if you make this change.
You've heard the saying "A picture is worth a 1000 words"? This is VERY true when it comes to Ebay. Since the customer can't hold and touch what you are selling, pictures are crucial to getting more bids for your auctions.
I subscribe to The Seller Sourcebook for 2 reasons:
1) I can make my pictures HUGE and that sets me apart from my competition, and gives the potential customer a really, really good look at what I'm selling. Here's an example showing you how large you can make a picture from one of my current listings - Henry's Wagon.
2) I can have a 10, 20 or 30 pictures WITHOUT paying any extra Ebay fees!
Seller Sourcebook has over 1,600 templates to choose from!
So... if you haven't ever used something like this, you should give it a try for at least one month and see if it doesn't make a difference in your sales.