I thought this would be worth noting since I saw it mentioned in another thread right now, and many people may not be sure how to do this, so I'll add upon Vargha's good advice. I'm far from a techie expert, but I use it regularly and it works great for me, to get as many free pictures on your eBay listing.
1.) Upload pictures to a hosting service. I use Photobucket.
2.) With each picture you upload, it will be tagged with an "HTML Link."
3.) When you are making your eBay listing, in the area where you type your description, there is a tab which says "HTML." Click on that tab.
4.) Copy the "HTML Link" from Photobucket and Paste it in its entirety into your eBay listing, wherever you would like it to appear on your listing.
The pictures will appear directly in your listing. To show you an example of how this works, here's a recently completed auction of mine:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=250779708501