Hi Sara;
I haven't taken a good look at the way this forum works, but I think using vB code would enable multiple pics provided they were linked to rather than sent as attachments to the post. I'll get around to reading the instructions to confirm that. Other than that, you're right, replying to my own post with follow-up pics is a better strategy.
What's in my current collection won't be going anywhere any time soon...but if you do any collection-thinning, feel free to let me know.