As Photobucket has now decided to charge a phenomenal $400 for third party hosting, I would be grateful if someone here could suggest another place I can store and post pictures/links to my cards?

"flickr" if you use Yahoo
Otherwise, go with "imgur", which is the one I'm in the process of switching over to. It's very easy to use, and free (for now anyway, haha).

or just get your own website and host for $13.00 a month or something. Way cheaper than Photobucket. Those guys are insane. They could have made it $20 a month and I bet most would have paid it.